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Thermodynamics ...

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  • Question 1
    4 / -1

    A Carnot’s engine used first an ideal monoatomic gas then an ideal diatomic gas. If the source and sink temperature are 411° C and 69° C respectively and the engine extracts 1000 J of heat in each cycle, then area enclosed by the PV diagram is

  • Question 2
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    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

  • Question 3
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    The temperature of reservoir of Carnot’s engine operating with an efficiency of 70% is 1000 K. The temperature of its sink is

  • Question 4
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  • Question 5
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    A Carnot engine has efficiency 1/5. Efficiency becomes 1/3 when temperature of sink is decreased by 50 K. What is the temperature of sink?

  • Question 6
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    A measure of the degree of disorder of a system is known as

  • Question 7
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    A Carnot engine has the same efficiency between 800 K to 500 K and x K to 600 K. The value of x is

  • Question 8
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    Even Carnot engine cannot give 100% efficiency because we cannot

  • Question 9
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  • Question 10
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    The first operation involved in a Carnot cycle is

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