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A gas is contained in a metallic cylinde...

A gas is contained in a metallic cylinder fitted with a piston.The piston is suddenly moved in to compress the gas and is maintained at this position. As time passes the pressure of the gas in the cylinder

A

increases

B

decreases

C

remains same

D

none

Text Solution

Verified by Experts

The correct Answer is:
B

After sudden rise of temperature since cylinder is conducting, heat flows out of cylinder, temperature falls and hence, pressure decreases.
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CP SINGH-LAWS OF THERMODYNAMICS-EXERCISE
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  9. Each molecule of a gas has f degrees of freedom. The ratio gamma for t...

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  10. The molar heat capacity of a gas at constant volumes is CV. If n moles...

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  11. Let (Cv) and (Cp) denote the molar heat capacities of an ideal gas at ...

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  12. The molar heat capacity for an ideal gas cannot

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  13. If for a gas, (R)/(CV)=0.67, the gas is

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  14. For hydrogen gas Cp-Cv=a and for oxygen gas Cp-Cv=b,Cp and Cv being mo...

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  15. If for hydrogen sp-sv=a and oxygen sp-sv=b, where sp and sv refer to s...

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  16. The ratio (Cp)/(Cv)=gamma for a gas. Its molecular weight is M. Its sp...

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  17. Cp is always greater than Cv for a gas, which of the following stateme...

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  18. If one mole of a monatomic gas (gamma=5/3) is mixed with one mole of a...

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