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  4. One mole of a certain ideal gas obtains an amount of heat Q = 1.60 kJ when its temperature is increased by Δ T = 72 K , keeping its pressure constant. The value of (CP/CV) for the gas is

Q. One mole of a certain ideal gas obtains an amount of heat when its temperature is increased by , keeping its pressure constant. The value of for the gas is

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Solution:

By the first law of thermodynamics

In an isobaric process

and (always)

or
or


But

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