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During a constant pressure expansion of a gas 33.3 % heat is converted into work while the temperature rises by 20K. The specific heat of gas at constant pressure is


A) 10% w
B) 12 % w
C) 15% w
D) 20% w

E) All of the above
F) B) and C)

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Which of the following processes is very close to reversible


A) lifting of a body above the ground
B) compression of a gas in the cylinder against a piston
C) flow of a fluid in a pipe
D) motion of a boat in water

E) C) and D)
F) B) and C)

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Air is compressed isothermally by performing work equal to 16 KJ upon it. The change in internal energy is


A) - 16 kj
B) zeroth law of thermodynamics
C) 16 kj
D) 32 kj

E) A) and B)
F) A) and C)

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