How much should the pressure of the gas be increased to decrease the volume by 10% at constant temperature ?
9.5%
11.11%
10%
5.11%
A
9.5%
B
11.11%
C
5.11%
D
10%
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Solution
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Let, P1 and P2 are the initial and final pressure. and V1 and V2 are the initial and final volume. Use P2×V2=P1×V1 Now, V2=90V1100 So, P2=(109)P1 Now, P2−P1= Change in pressure =P19 So, percentage change = 11.11%
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