QUESTION 24 The first law of thermodynamics is AU=- W+0 We here consider an ideal gas system which is thermally isolated from its surrounding, that is o=0 always holds (there is no heat transfer). Now after this ideal gas system expands (volume increases), its temperature: OA keeps unchanged. OB. decreases. OC increases O D. None of the above. QUESTION 25

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Ideal Gas Law

Ideal gas law states that the product of pressure and volume of a gas directly varies with the product of the number of moles, the universal gas constant, and the temperature of the gas.