If the pressure of gas is increased from 1.01×105Pa to 1.165×105Pa and volume is decreased by 10% at constant temperature, then bulk modulus of the gas is
A
15.5×105Pa
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B
1.4×1015Pa
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C
1.55×105Pa
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D
0.0155×105Pa
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Solution
The correct option is A1.55×105Pa
Given, Pressure of gas increased from 1.01×105 to 1.165×105 So, △P (change in Pressure) =(1.165−1.01)×105Pa
ΔP=0.155×105Pa
ΔVV×100=−10(−)( sign represent decreased in volume) ΔVV=−10100
we know, βulk modulus (B)=ΔP(ΔVV)β=0.155×105(10100)β=1.55×105Pa