Q.

The relation between internal energy U, pressure P and volume V of a gas in an adiabatic process is  U=5+3PV.  Where a and b are constants. What is the value of  the ratio of the specific heats?

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a

32

b

43

c

53

d

75

answer is B.

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Detailed Solution

For an adiabatic process, U=a+bpV,γ=b+1b=3+13=43
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The relation between internal energy U, pressure P and volume V of a gas in an adiabatic process is  U=5+3PV.  Where a and b are constants. What is the value of  the ratio of the specific heats?