Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 16

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$3$ moles of an ideal gas are contained within a cylinder by a frictionless piston and are initially at temperature $T .$ The pressure of the gas remains constant while it is heated and its volume doubles. If $R$ is molar gas constant, the work done by the gas in increasing its volume is

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Important Questions on Thermodynamics

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 17

Two moles of a gas at temperature

T

and volume

V

are heated to twice its volume at constant pressure. If

\frac{C_{P}}{C_{V}} = γ

then increase in internal energy of the gas is

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 18

To an ideal triatomic gas

800 cal

heat energy is given at constant pressure. If vibrational mode is neglected, then energy used by gas in work done against surroundings is

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 19

A closed cylindrical vessel contains

N

moles of an ideal diatomic gas at a temperature

T .

On supplying heat, temperature remains same, but

n

moles get dissociated into atoms. The heat supplied is

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 20

An ideal monatomic gas at

300 K

expands adiabatically to

8

times its volume. What is the final temperature?

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 21

Isothermal elasticity for a gas (having

γ = \frac{5}{3}

) is

3 \times 10^{5} N m^{- 2} .

If the same gas is undergoing adiabatic change then adiabatic elasticity at that instant is:

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 22

The variation of pressure $P$ with volume $V$ for an ideal monatomic gas during an adiabatic process is shown in figure. At point $A$ the magnitude of rate of change of pressure with volume is

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 23

Figure shows, the adiabatic curve on a $\log T$ and $\log V$ scale performed on ideal gas. The gas is

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Gamma Question Bank for Medical Physics>Chapter 12 - Thermodynamics>Assignment>Q 24

A diatomic gas undergoes a process represented by

P V^{1.3} =

constant. Choose the incorrect statement.