An engine takes in 5 mole of air at and 1 atm

PHYSICS · Subjective · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics

Problem

An engine takes in 5 mole of air at 20∘C20^\circ\text{C} and 1 atm, and compresses it adiabatically to 1/10th1/10^{\text{th}} of the original volume. Assuming air to be a diatomic ideal gas made up of rigid molecules, the change in its internal energy during this process comes out to be XX kJ. The value of XX to the nearest integer is _____.

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