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Recent questions tagged kinetic-theory-of-an-ideal-gas

A vertical cylinderical tank 1cm high has its top end closed by a tightly fitted frictionless piston of negligible weight.The air inside the cylinder is at an absolute pressure of 1atm.The piston is depressed by pouring mercury on it very slowly.How far will the piston before mercury spills on the top of cylinder?

asked May 12, 2014 by sreemathi.v

1 answer

Helium gas is filled vessel ( having negligible thermal expansion coefficeint ) when heated from 300 K to 600 K . Then the average kinetic energy of atom will be

asked Mar 31, 2014 by yamini.v

1 answer

At what temperature the molecule of nitrogen will have the same rms velocity as the molecule of oxygen at $\;127^{0}C\;$ ?

asked Mar 31, 2014 by yamini.v

1 answer

At room temperature , the rms speed of the molecules of a diatomic gas is found to be 1933 m/s . The gas is

asked Mar 31, 2014 by yamini.v

1 answer

A gas mixture consists of 2 mol of oxygen and 4 moles of Argon at temperature T . Neglecting all vibrational moles , the total internal energy of the system is

asked Mar 31, 2014 by yamini.v

1 answer

Calculate the temperature if helium atoms have an rms speed equal to the escape velocity from the surface of the Earth (11.2km/s)?

asked Mar 27, 2014 by yamini.v

1 answer

Three closed vessels A , B and C are at the same temperature T and contain gases which obey maxwellian distibution of velocities . Vessel A contains only $\;O_{2}\;$ . B only $\;N_{2}\;$ and C a mixture of equal quantities of $\;O_{2}\;$ and $\;N_{2}\;$ . If the average speed of $\;O_{2}\;$ molecules in vessel A is $\;V_{1}\;$ , that of $\;N_{2}\;$ molecules in vessel B is $\;V_{2}\;$ the average speed of the $\;O_{2}\;$ molecules in vessel C will be

asked Mar 27, 2014 by yamini.v

2 answers

Consider a mixture of oxygen and hydrogen kept at room temperature . As compared to a hydrogen molecule , an oxygen molecule hits the wall

asked Mar 27, 2014 by yamini.v

1 answer

The rms speed of oxygen molecules in a gas is V . If the temperature is doubled and the $\;O_{2}\;$ molecule dissociates into oxygen atoms , the rms speed will become

asked Mar 27, 2014 by yamini.v

1 answer

Which of the following quantities is zero on an average for the molecules of an ideal gas in equilibrium ?

asked Mar 26, 2014 by yamini.v

1 answer

Which of the following is correct for the molecules of a gas in thermal equilibrium ?

asked Mar 26, 2014 by yamini.v

1 answer

Q Joules of Heat is given to a sample of Helium in such a manner that the pressure remains constant throughout. The work done by the gas is then?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

The equation of a state of gas is given by $PV = nRT + Pb$. If the gas is isothermally expanded from a volume $V$ to $2V$, what is the work done during the process?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

A gaseous compound X contains 44.4% Carbon, 51.9% Nitrogen and 3.7% Hydrogen. Under like conditions, same volume of X as that of Hydrogen took 50 seconds to diffuse whereas Hydrogen took 9.62 seconds. What is the molecular formula of X?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

Consider a gas in a container which is made air tight. Now, there is a movable piston fitted with the container. The gas performs some mechanical work on the piston by moving it. The reason the gas performs its work is because of which of the following?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

For an ideal gas, the following conversions are made:

asked Mar 11, 2014 by balaji.thirumalai

1 answer

Two gases are sent through 2 ends of a 2m long pipe. If the gases reach at a distance of 1.5m from the end of the lighter gas, then what is the ratio of their masses (lighter: heavier), assuming pressure conditions to be the same?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

In the figure below, $N_2$ and $H_2$ are sent into the metre pipe through the two ends. At what distance $x$ will Ammonia be formed.

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?

asked Mar 11, 2014 by balaji.thirumalai

1 answer

In a closed container, if we increase the temperature of the vessel, the pressure also increases due to:

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?

asked Feb 5, 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?

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?

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?

asked Jan 31, 2014 by balaji

1 answer

Keeping the volume constant and increasing the temperature, which of the following will hold true?

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

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?

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?

asked Jan 28, 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, $T = 273K$)

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 $H_2 = \large\frac{7}{5}$)

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?

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?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

A bubble of an ideal gas is trapped in a liquid filled in a container. As the bubble moves upwards besides the buoyancy force, the forces acting on it are:

asked Jan 23, 2014 by balaji.thirumalai

1 answer

Which of the following statements is true about an ideal gas?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

Which of the following statements is true about an ideal gas?

asked Jan 23, 2014 by balaji.thirumalai

0 answers

A gas is found to obey the law $P =kV^a$. The initial temperature and volume are $V_0$. If the gas expands to $b V_0$ the sign of the internal energy change depends on which of the following? (Note: $\gamma$ is the adiabatic index)

asked Jan 23, 2014 by balaji.thirumalai

1 answer

Which of the following quantities depend on temperatures only for a given ideal gas?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Which of the following quantities depend on temperatures only for a given ideal gas?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Which of the following quantities is independent of the nature of gas at the same temperature?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Internal energy of a system remains constant when it undergoes?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

A student conducted an experiment and found that an ideal gas obeys the condition $\large\frac{p^2}{\rho} = $ constant. Initially the gas is at a temperature $T$, pressure $p$ and density $\rho$. The gas expands such that the density changes to $\rho/2$, which of the following is true?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

In the cylinder shown below the two pistons are connected by a string. Assume that the piston can move freely, what happens when the gas trapped between the pistons are heated?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

A closed vessel moving with a velocity $v$ (with zero acceleration) is stopped suddenly. If the vessel contains a gas of molecular mass $M$, what will the rise in temperature of the gas be?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

If under standard conditions a gas of density $1.2 kg/m^3$ has sound propagating in it with velocity of $340 m/s$, what is its atomicity/

asked Jan 22, 2014 by balaji.thirumalai

1 answer

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