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A Carnot engine works between constant temperature $T_{1}$ and $T_{2}$ of source and sink, respectively. For efficiency to be greatest

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Important Questions on Thermodynamics

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 2

Two carnot engines

A

and

B

are operated in series. The first one,

A,

receives heat at

T_{1} (= 600 K)

and rejects to a reservoir at temperature

T_{2} .

The second engine

B

receives heat rejected by the first engine and, in turn, rejects to a heat reservoir at

T_{3} (= 400 K) .

Calculate the temperature

T_{2}

if the work outputs of the two engines are equal:

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 3

A reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by

62^{o} C

, the efficiency of the engine is doubled. The temperatures of the source and sink are

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 4

A Carnot engine takes 300 calories of heat from a source at

500 K

and rejects

150

calories of heat to the sink. The temperature of the sink is

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 5

A given mass of a gas expands from state

A

B

by three different paths

1

2

and

3

as shown in the diagram. If

W_{1}

W_{2}

and

W_{3}

respectively be the work done by the gas along three paths, then

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 6

Two carnot engine are connected in series and output work of both engine is same. If temperature of source of

1^{s t}

engine is

600 K

and temperature of sink of

2^{n d}

engine is

400 K .

The temperature of junction will be

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 7

A certain engine which operates in a carnot cycle absorbs

3.347 k J

400 ° C

, how much work is done by the engine per cycle? The temperature of sink is

100 ° C

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 8

A carnot engine working between

300 K

and

600 K

has work output of

800 J {cycle}^{- 1}

. What is the amount of heat energy supplied to the engine from source per cycle

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Achieve Indian Airforce Agniveer Vayu Physics Practice Book>Chapter 12 - Thermodynamics>Exercise>Q 9

A Carnot engine absorbs an amount Q of heat from a reservoir at an absolute temperature T and rejects heat to a sink at a temperature of T/3. The amount of heat rejected is

A Carnot engine works between constant temperature T1 and T2 of source and sink, respectively. For efficiency to be greatest

Important Questions on Thermodynamics

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A Carnot engine works between constant temperature $T_{1}$ and $T_{2}$ of source and sink, respectively. For efficiency to be greatest