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Recent questions tagged ch13
Questions
What would be the most likely value for C$_T$, the molar heat capacity at constant temperature?
jeemain
physics
kinetic-theory-of-gases
specific-heat-capacity
molar-specific-heat
class11
ch13
easy
asked
Mar 11, 2014
by
balaji.thirumalai
1
answer
An open vessel containing 3 moles of an ideal gas at $ 300 ^{\circ}$ is heated to $ 500 ^{\circ}$. What is the number of moles left after heating?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
medium
asked
Mar 11, 2014
by
balaji.thirumalai
1
answer
When an open vessel is heated, which of the following holds true for the ideal gas inside the vessel?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
pressure-of-an-ideal-gas
behaviour-of-gases
ideal-gas-law
asked
Mar 11, 2014
by
balaji.thirumalai
1
answer
The half life of $\;^{215}At\;$ is $\;200 \mu s\;$ . The time taken for radioactivity of a sample of $\;^{215}At\;$ to decay to $\;{\large\frac{1}{4}}^{th}\;$ of its initial value is
jeemain
physics
class11
ch13
nuclei
nuclear-physics
easy
radioactivity
half-life
alpha-beta-and-gamma-decay
asked
Mar 11, 2014
by
yamini.v
1
answer
A Beta decay is a type of radioactive decay in which a beta particle (an electron or a positron) is emitted from an atomic nucleus. During a negative beta decay $\beta^{-}$, which of the following happens?
jeemain
physics
class11
ch13
nuclei
nuclear-physics
radioactivity
alpha-beta-and-gamma-decay
easy
asked
Mar 6, 2014
by
yamini.v
1
answer
The binding energy per nucleon of deuteron $\;(_{1}^{2}H)\;$ and helium nucleus $\;(_{2}^{4}He)\;$ is 1.1 MeV and 7 MeV respectively . If two deuteron nuclei react to form a single helium nucleus, the energy released is
jeemain
physics
class11
ch13
nuclei
nuclear-physics
nuclear-binding-energy
easy
asked
Mar 6, 2014
by
yamini.v
1
answer
The half life of radioactive radon is 3.8 days . The time , at end of which $\;\large\frac{1}{20}^{th}\;$ of radon sample will remain undecayed is
jeemain
physics
class11
ch13
nuclei
nuclear-physics
radioactivity
half-life
easy
asked
Feb 27, 2014
by
yamini.v
1
answer
A radioactive nucleus can decay by two different process . The half life for first process is $\;t_{1}\;$ and that for second process is $\;t_{2}\;$. Find the effective half life of nucleus
jeemain
physics
class11
ch13
nuclei
nuclear-physics
easy
radioactivity
half-life
alpha-beta-and-gamma-decay
medium
asked
Feb 27, 2014
by
yamini.v
1
answer
The mean lives of radioactive substance are 1620 year and 405 year for $\;\alpha\;$ emission and $\;\beta\;$ emission respectively . Find time during which $\;{\large\frac{3}{4}}^{th}\;$ of a sample will decay if it is decaying both by $\;\alpha\;$ emission and $\;\beta\;$ emission simultaneously .
jeemain
physics
class11
ch13
nuclei
nuclear-physics
radioactivity
alpha-beta-and-gamma-decay
difficult
asked
Feb 27, 2014
by
yamini.v
1
answer
The disintegration rate of a radioactive sample at a certain instant is 4750 dpm . Five minute later rate becomes 2700 disintegration per minute ; Then the half-life of sample is
jeemain
physics
class11
ch13
nuclei
nuclear-physics
medium
radioactivity
half-life
asked
Feb 27, 2014
by
yamini.v
1
answer
The disintegration rate of a radioactive sample at a certain instant is 4750 dpm . Five minute later rate becomes 2700 disintegration per minute . Then the decay constant is
jeemain
physics
class11
ch13
nuclei
nuclear-physics
medium
radioactivity
decay-constant
asked
Feb 26, 2014
by
yamini.v
2
answers
6 boys and 6 girls sit randomly in a row, what is thae probability that boys and girls sit alternately?
jeemain
math
statistics-and-probability
medium
sec-a
cbse
class12
ch13
asked
Feb 14, 2014
by
bharathdon.999
1
answer
Lets say you enter a Chess tournament. The probability of winning a game against half the players is 0.3, the probability of winning against one quarter of them is 0.4 and the probability of winning against the remaining one quarter is 0.5. Let's say you play against a randomly chosen opponent. What is your probability of winning?
jeemain
math
probability
cbse
easy
sec-a
class12
multiplication theorem
ch13
additionalproblem
mock
asked
Feb 12, 2014
by
balaji.thirumalai
1
answer
What is the difference between Bayes theorem and Total Probability theorem?
cbse
class12
math
ch13
probability
asked
Feb 12, 2014
by
sindhusankar30_1
1
answer
Which of the following does not represent Charle's law?
charles-law
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
asked
Feb 5, 2014
by
balaji
1
answer
Which of the following does not represent Boyle's law?
boyles-law
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
asked
Feb 5, 2014
by
balaji
3
answers
An oxide of nitrogen at NTP has a density equal to another oxide of Nitrogen at $12^{\circ}$. If we consider pressure conditions to be the same, what are the two oxides involved?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
medium
asked
Feb 5, 2014
by
balaji
1
answer
At $0^{\circ}$, the density of carbon-di-oxide is the same as that of an oxide of nitrogen. The oxide of nitrogen is which of the following, considering the pressure conditions to be the same?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Feb 5, 2014
by
balaji
1
answer
In a closed container, if we increase the temperature of the vessel, the pressure also increases due to:
jeemain
physics
kinetic-theory-of-gases
medium
kinetic-theory-of-an-ideal-gas
pressure-of-an-ideal-gas kinetic-interpretation-of-temperature
speed-of-molecules
class11
ch13
asked
Feb 5, 2014
by
balaji
1
answer
According to Maxwell's distribution of velocities, with an increase in temperature, which of the following is true?
jeemain
physics
kinetic-theory-of-gases
medium
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
class11
ch13
speed-of-molecules
asked
Feb 5, 2014
by
balaji
1
answer
A bag contains 4 balls. Two balls are drawn at random and are found to be white. What is the probability that the bag has 3 white balls.
cbse
class12
ch13
additionalproblem
sec-c
difficult
math
jeemain
probability
asked
Jan 31, 2014
by
rvidyagovindarajan_1
1
answer
Gas-A is kept in the left partition of the container with a temperature of T at pressure 2P. Gas-B is kept in the right part of the container with a temperature of 4T at pressure P. When what is the value of the Pressure P' when the partition is removed?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
medium
asked
Jan 31, 2014
by
balaji
1
answer
Gas-A is kept in the left partition of the container with a volume 2V at pressure P. Gas-B is kept in the right part of the container with a volume of 3V at pressure P. Both the portions are the same temperature T. When what is the value of the Pressure P' when the partition is removed?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Jan 31, 2014
by
balaji
1
answer
Gas-A is kept in the left partition of the container with a volume V/n at pressure P. Gas-B is kept in the right part of the container with a volume of V/(n+1) at pressure P. Both the portions are the same temperature T. When what is the value of the Pressure P' when the partition is removed?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Jan 31, 2014
by
balaji
1
answer
Consider the following case. What is the value of P' ?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
medium
asked
Jan 31, 2014
by
balaji
1
answer
Hot air balloon is an application of what law?
jeemain
physics
kinetic-theory-of-gases
easy
class11
ch13
behaviour-of-gases
ideal-gas-law
charles-law
asked
Jan 31, 2014
by
balaji
3
answers
Bursting of a soda bottle in summer is an example of ?
jeemain
physics
kinetic-theory-of-gases
easy
class11
ch13
behaviour-of-gases
ideal-gas-law
guy-lussacs-law
asked
Jan 31, 2014
by
balaji
1
answer
Which of the following graphs will be linear with zero slope in case of an ideal gas?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
ideal-gas-law
easy
behaviour-of-gases
asked
Jan 31, 2014
by
balaji
1
answer
Two diatomic gases have denisities d1 and d2 under similar conditions. The ratio of the root mean square velocities is?
jeemain
physics
kinetic-theory-of-gases
speed-of-molecules
easy
class11
ch13
kinetic-theory-of-an-ideal-gas
asked
Jan 31, 2014
by
balaji
1
answer
A container contains an ideal gas. The wall is hit by "n" molecules / second, each of mass "m" and moving the same velocity "u". The force exerted by the molecules on the wall is?
jeemain
physics
kinetic-theory-of-gases
speed-of-molecules
medium
class11
ch13
kinetic-theory-of-an-ideal-gas
asked
Jan 31, 2014
by
balaji
1
answer
An ideal gas kept in vessel has rms spped of 200 m/s. If 10% of the gas leaks out of the vessel, then the rms speed of the remaining molecules is?
jeemain
physics
kinetic-theory-of-gases
speed-of-molecules
medium
class11
ch13
kinetic-theory-of-an-ideal-gas
asked
Jan 31, 2014
by
balaji
1
answer
A liquid is boiled and its temperature (T) versus Heat supplied (Q) graph is plotted. Which of the following is the correct graph?
jeemain
physics
kinetic-theory-of-gases
cbse
medium
class11
ch13
xtra
asked
Jan 31, 2014
by
balaji
1
answer
If for an ideal gas, $\large\frac{R}{C_v} $$= 0.29$, it's shape is?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
easy
specific-heat-capacity
molar-specific-heat
asked
Jan 31, 2014
by
balaji
1
answer
Suppose you roll 5 dice and sum up the highest 3 numbers. What is the probability that the sum is 18?
cbse
class12
ch13
additionalproblem
sec-b
difficult
math
jeemain
probability
asked
Jan 30, 2014
by
balaji
1
answer
Suppose that 5% of men and 0.25% of women have grey hair. A grey haired person is selected at random. What is the probability of this person being male? Assume that there are equal number of males and females.
cbse
class12
bookproblem
ch13
misc
p582
q3
sec-b
medium
math
asked
Jan 30, 2014
by
balaji
1
answer
If you flip a fair coin 19 times, what is the probability that you will end up with an even number of heads?
jeemain
math
probability
cbse
class11
events
ch13
medium
sec-a
asked
Jan 29, 2014
by
balaji
1
answer
Which of the following quantities cannot be zero on an average for the molecules of an ideal gas in equilibrium condition?
jeemain
physics
kinetic-theory-of-gases
ch13
class11
easy
molecular-nature-of-matter
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
Which of the following relations hold true for a monatomic gas?
jeemain
physics
kinetic-theory-of-gases
easy
class11
ch13
specific-heat-capacity
molar-specific-heat
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
The specific heat of a gas:
jeemain
physics
kinetic-theory-of-gases
easy
class11
ch13
specific-heat-capacity
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
Keeping the volume constant and increasing the temperature, which of the following will hold true?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
easy
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
The average translational kinetic enegry of Oxygen molecules (molecular weight of $O_2$ is 32) at a particlular temperature is 0.032eV. What is the average translational kinetic energy of $N_2$ molecules (molecular weight is 28) at the same temperature
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
easy
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
A vessel is filled with an ideal gas at 76 cm of Hg (mercury). The mass of gas is increased by 25% by introducing more gas at the same temperature. What is the resultant pressure of Hg in cm?
molecular-nature-of-matter
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
kinetic-theory-of-an-ideal-gas
pressure-of-an-ideal-gas
easy
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
The energy density of an ideal monoatomic gas is equal to:
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-interpretation-of-temperature
medium
energy-density
atomicity
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
The $x$-components of velocity of some particles (in $km/s$) are $6,4,2,0,-2,-4,-6$. The root-mean-square (rms) velocity calculated from these data (in $km/s$) is nearest to?
speed-of-molecules
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
medium
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
A given sample of ideal gas is made to undergo a process in which the temperature decreases by 10% and the pressure decreases by 8%. By what % does the volume change?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Jan 28, 2014
by
balaji.thirumalai
1
answer
By what percentage should the volume be decreased to increase the pressure by 10% at constant temperature?
jeemain
physics
kinetic-theory-of-gases
class11
ch13
behaviour-of-gases
ideal-gas-law
easy
asked
Jan 24, 2014
by
balaji.thirumalai
1
answer
If the speed of sound in Hydrogen at NTP is equal to the speed of sound in carbon-di-oxide at $T_0$, what is the value of $T_0$? (i.e, $T = 273K$)
speed-of-molecules
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
medium
asked
Jan 24, 2014
by
balaji.thirumalai
1
answer
Sound travels with a speed $v$ in hydrogen gas at NTP. At what temperatures does carbon-di-oxide have a rms (root mean square) velocity of $2v$ (Note: $T_0 = 273K$ and $\gamma$ for $H_2 = \large\frac{7}{5}$)
speed-of-molecules
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-energy-and-temperaturemedium
asked
Jan 24, 2014
by
balaji.thirumalai
1
answer
The temperature at which the most probably speed of oxygen is equal to the rms velocity of hydrogen at NTP is?
speed-of-molecules
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
kinetic-interpretation-of-temperature
asked
Jan 23, 2014
by
balaji.thirumalai
1
answer
The temperature at which the velocity of Helium is four times the velocity of Hydrogen at NTP is?
speed-of-molecules
easy
jeemain
physics
kinetic-theory-of-gases
class11
ch13
kinetic-theory-of-an-ideal-gas
asked
Jan 23, 2014
by
balaji.thirumalai
1
answer
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