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"When heat is added to a system, the int...

"When heat is added to a system, the internal energy of the system must increase". Justify this statement.

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PHYSICS GALAXY - ASHISH ARORA-THERMODYNAMICS LAWS & SPECIFIC HEATS OF GASES -Discussion Question
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  2. Some gas is enclosed in a piston-cylinder system. It is expanded to do...

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  4. When a block moves in a straight line on a rough surface. Some heat is...

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  5. Can whole of work be converted into heat?

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  6. Can we convert heat completely into mechanical work in a cyclic proces...

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  7. When a gas is compressed adiabaticlly, it becomes more elasitc. Is thi...

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  8. Represent the Carnot cycle on a VT diagram.

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  9. The molar heat capacity at constant pressure of all diatomic gases is ...

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  10. A gas is first compressed adiabatically and then isothermally. In both...

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  11. In the polytropic process PV^2 = constant, is the gas cooled'or heated...

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  12. When a mountaineer who eats food, gets warm a lot during a climb and d...

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  13. The temperature of a gas is increasing, hence its internal energy also...

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  14. When a hand pump is used to inflate the tires of a bicycle, the pump g...

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  15. A disc rotated about its central axis and gently placed on another coa...

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  16. "When heat is added to a system, the internal energy of the system mus...

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  17. When a tyre bursts, the air coming out is cooler than the surrounding ...

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