Question

561 dm3 of a at S.T.P is filled in a 748 dm3

container. If temperature is constant, calculate the

percentage change in pressure required.​

Answer 1

initial volume = V1 = 561 dm3

Final volume= V2 = 748dm3

Difference in volume = 748-561 = 187dm3

As the temperature is constant,

Decrease in pressure percentage,

187/748 ×100 = 25%

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