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One mole of an ideal gas at an initial temperature of T K does 6R joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is 5/3, the final temperature of gas will be:

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Important Questions on Thermodynamics

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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 92
2 moles of He gas γ=5/3 of 20 litre volume at 27 °C subjected to constant pressure is expanded to double the initial volume. Then, it is adiabatically taken to initial temperature 27 °C. find work done in adiabatic process.
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 93
A Carnot engine works between 600 K and 300 K. In each cycle of operations, the engine draws 1000 joule of energy from the source at 600 K. The efficiency of the engine is,
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 94
A Carnot engine works between 600 K and 300 K. In each cycle of operations, the engine draws 1000 joule of energy from the source at 600 K. Then, the useful work done by the engine is -
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 95
A Carnot engine works between 600 K and 300 K. In each cycle of operations, the engine draws 1000 joule of energy from the source at 600 K. Then, the energy rejected to the sink is
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 96
A Carnot engine works between ice point and steam point. Its efficiency will be,
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 97
A Carnot engine works between ice point and steam point. In order to increase the efficiency of the engine by 20%, its sink temperature will have to be changed by keeping the source temperature same
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 98
A Carnot engine works between ice point and steam point. in order to increase the efficiency of 20%, its source temperature will have to changed by keeping the sink temperature constant.
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Alpha Question Bank for Medical: Physics>Chapter 17 - Thermodynamics>Exercise-1>Q 99
A Cannot engine works between 200 °C and 0 °C. Another Carnot engine works between 0 °C and - 200 °C. In both cases, the working substance absorbs 4 kilocalories of heat from the source. The efficiency of first engine will be