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Questions  

In an adiabatic process wherein pressure is increased by 23% if CpCv = 32, then the volume decreases by about:

a
49%
b
23%
c
4%
d
94%

detailed solution

Correct option is A

For an adiabatic process, PVγ = KHere, γ = 32  and K = constant      PV32 = Klog P + 32log V = o log K∴ ∆PP+32∆VV = 0∴  ∆VV = -23∆PP∆VV×100 = -(23)(∆PP×100)% = -23×23% = -49%∴  Volume decreases by about 49%.

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During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its  temperature. The ratio of  CpCV  for the gas is  


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