Which of the following is not a thermodynamical coordinate?
Options
(a) P (b) T (c) V (d) R
Correct Answer:
R
Explanation:
P, V and T are three coordinates connected with thermodynamics while […]
The temperature at which the vapour pressure of a liquid becomes equal to the external (atmospheric) pressure is known as its
Options
(a) Melting point (b) Sublimation point (c) Critical temperature (d) Boiling […]
An ideal heat engine works between temperature T₁=500 K and T₂=375 K. If the engine absorbs 600J of heat from the source then the amount of heat released to the sink is
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The molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio of specific heat at constant pressure to that at constant volume is
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(a) (9/7) (b) (7/5) (c) […]
Efficiency of a Carnot engine is 50% when temperature of sink is 500K. In order to increase efficiency up to 60% keeping temperature of source remains the same, temperature of sink is
Options
A Carnot engine takes heat from a reservoir at 627⁰C and rejects heat to a sink at 27⁰C. Its efficiency will be
Options
(a) (3/5) (b) (1/3) (c) (2/3) (d) (200/209)
Correct Answer: […]
For a diatomic gas charge in internal energy for unit charge in temperature for constant pressure and constant volume is U₁ and U₂ respectively. U₁ : U₂ is
Options
(a) (5:3) (b) (3:5) […]
Initial pressure and volume of a gas are P and 800cc. If the final volume is 100cc and γ=5/3, then the final pressure equals to
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(a) P (b) 8P (c) 16P (d) […]
An ideal gas is expanding such that PT²=constant. The coefficient of volume expansion of the gas is
Options
(a) 1/T (b) 2/T (c) 3/T (d) 4/T
Correct Answer:
3/T
Explanation:
No explanation available. […]
A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically. The ratio of its final pressure to the initial pressure is (given the ratio of the specific heat of the given gas […]
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