A certain mass of an ideal gas at 9 atm and 30°C is first heated to 131°C at constant volume and then the amount of the gas is increased by 50% at constant volume and temperature. The final pressure o

Question

A certain mass of an ideal gas at 9 atm and 30°C is first heated to 131°C at constant volume and then the amount of the gas is increased by 50% at constant volume and temperature. The final pressure of the gas becomes

Prashant Kotian · Accepted Answer

Correct answer: C. P2 = 9 * (404/303) = 12 atm. Adding 50% mass increases P by 50%. Final P = 12 * 1.5 = 18 atm. Therefore, correct answer is C.

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