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Recent questions tagged ch13

An ideal gas occupies a volume V at temperature T and pressure P. The mass of each molecule is m. The molar mass of the gas is M. Which of the following cannot be an expression for density of an ideal gas?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

An ideal gas occupies a volume V at temperature T and pressure P. The mass of each molecule is m. The molar mass of the gas is M. Then the temperature at which the sample of gas will weight m is given by which of the following options?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

An ideal gas occupies a volume V at temperature T and pressure P. The mass of each molecule is m. Then the number of molecules in the sample is?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

For an ideal gas, average kinetic energy per degree of freedom 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 quantities is larger for a diatomic has than that of a monoatomic gas?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

Given the following statements, choose the correct answer:

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 $P =kV^{-2}$. The initial volume is $V_0$. If the gas expands to $4 V_0$ and if the initial temperature is $T_0$ what is its final temperature?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

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

A gas is found to obey the law $P^3V =$ constant. The initial temperature and volume are $T_0$ and $V_0$. If the gas expands to $2 V_0$ what happens to the internal energy?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

In a thermodynamic process, neon obeys the law $TP^{\large\frac{2}{5}}$ = constant. If the temperature of 2 moles of gas is raised from T to 5T, then the heat given to gas (consider ideal behaviour) is what?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

In a thermodynamic process, an ideal monoatomic gas follows the law $TP^{\large\frac{3}{5}} = $ constant. If temperature of 2 moles of gas is raised from T to 4 T, then what is the heat given to the gas?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

If a gas is made to expand in such a way that pressure increases and its final and initial volumes are equal then which of the following statements must be true?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

If a gas is made to expand in such a way that its final and initial pressure are equal then which of the following statements cannot be true?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

A gas is made to expand in such a way that its final and initial temperatures are equal and also the process followed by the gas traces a straight line of the PV diagram. Then, which of the following statements is true?

asked Jan 23, 2014 by balaji.thirumalai

1 answer

The temperature versus volume of an ideal gas is shown below.

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Pressure versus Temperature graph of an ideal gas is shown below. Then which of the options that follow forms the corresponding P-V Diagram?

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 depend on temperatures only for a given ideal gas?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

The molar heat capacity for an ideal gas is?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Which of the following statements is false about the molar heat capacity of the 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

The quantity $\large\frac {mRT^2}{\rho}$ of an ideal gas is proportional to the:

asked Jan 22, 2014 by balaji.thirumalai

2 answers

Internal energy of a system remains constant when it undergoes?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

A gas with $\large\frac {C_p}{C_v} = \gamma$ goes from an initial state of $(P_1,V_1,T_1)$ to a final state of $(P_2,V_2,T_2)$ through an adiabatic process. The work done by the gas is?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

In a given process, $\large\frac{1}{k}$th part of the supplied heat goes in raising internal energy of the gas. Finding the molar specific heat of the gas and the process gives?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

In a given gas sample of Hydrogen, one fifth of the heat supplied is used to raise the internal energy of the gas. Finding the molar specific heat of the gas gives?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Neon gas has undertaken a process in which the pressure and the volume are changed according to the equation $P=kV^k$. The molar hear capacity of the gas for the process is given by?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

Helium gas has undertaken a process in which the pressure and the volume are changed according to the equation $P=kV^2$. If $C_v$ is the molar specific heat at constant volume, then the molar hear capacity of the gas for the process is given by?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

If $2$ moles of an ideal monoatomic gas at tempterature $5T_0$ is mixed with $3$ moles of another ideal monoatomic gas at temperature $3T_0$, what will be the temperature of the mixture?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

If $1$ mole of an ideal monoatomic gas is mixed with 2 moles of an ideal diatomic gas, what is the temperature of the given mixture, given that the monoatomic gas is at temperature $T_0$ and diatomic gas is at temperature $2T_0$?

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

The pressure versus volume graph for an ideal gas of equal number of moles at different temperature are plotted as shown in the figure. Choose the correct alternative:

asked Jan 22, 2014 by balaji.thirumalai

1 answer

A pressure-temperature graph of an ideal gas is shown below. Choose the correct alternative (assume equal number of moles of different volumes).

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

Three different gases, one monoatomic, one diatomic and one triatomic are expanded adiabatically under similar conditions, i.e., their final and initial conditions are the same. The least amount of work is done in the case of which gas?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

The below graph shows the behaviour of 3 gases undergoing adiabatic expansion. Which of the following can be true?

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

One mole of a monoatomic ideal gas is mixed with two moles of a diatomic gas. What is the molar specific heat of the mixture at constant volume?

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

An air bubble is at the bottom of the lake at $40m$ deep where the temperature is $6^{\circ}C$. The bubble rises to the surface where the temperature is $20^{\circ}C$ If it's volume at the bottom is $50\;cm^3$, what is its volume at the surface?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

An air bubble is at the bottom of the lake at $40\;m$ deep where the temperature is $0^{\circ}C$. The bubble rises to the surface where the temperature is $20^{\circ}C$ If it's volume at the bottom is $50\;cm^3$, what is its volume at the surface?

asked Jan 22, 2014 by balaji.thirumalai

1 answer

In a binomial distribution the mean is 15 and variance is 10, then parameter $n$ is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

Probability of getting positive integral roots of the equation $ x^2-n=0$ for the integer $ n \: \: \: 1 \leq n \leq 40$ is

asked Jan 16, 2014 by thanvigandhi_1

1 answer

If the function $f(x)=\left\{\begin{array}{1 1}(\cos x)^{1/x}&x\neq 0\\k&x=0\end{array}\right.$ is continuous at $x=0$ then value of $K$ is

asked Jan 6, 2014 by sreemathi.v

1 answer

The value of $f(0)$ so that $f(x)=\large\frac{(4^x-1)^3}{\sin\big(\Large\frac{x}{4}\big) \normalsize {\log}(1+\Large\frac{x^2}{3}\big)}$ is continuous everywhere is

asked Jan 6, 2014 by sreemathi.v

1 answer

let $\alpha$ and $\beta$ be the distinct roots of $ax^2+bx+c=0$ then $\lim\limits_{x\to \alpha}\large\frac{1-\cos(ax^2+bx+c)}{(x-\alpha)^2}$ is equal to

asked Jan 6, 2014 by sreemathi.v

1 answer

$\lim\limits_{x\to 1}\large\frac{\sin(e^x-1)}{\log x}$ is

asked Jan 6, 2014 by sreemathi.v

1 answer

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