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0.31 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 23 °C and 0...

0.31 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 23 °C and 0 atm pressure undergo an expansion against a constant external pressure of 1.11 atm, and do 1.9 kJ of work. The final pressure of the gas is 1.11 atm. Calculate the change in enthalpy, ΔH. Report your answer in J.

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Answer #1

The work done by the gas is, W 3 р.mdy ext Calculate the final volume of the gas as follows: W %3 Pat (V, - И) ext -V ext V2=

The specific heat capacity at constant volume is, С, 3 С, + R 3R + R 2 5R 2 Calculate the change in enthalpy as follows: ДН —

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