match-thermo

column1-

A). C=CV-2R

B)PV3=constant

C) C=CV+2R

D)P=2V5

COLUMN 2-

P) if volume increases then tep. will also increase

Q) if volume increases then tep. will decrease

R) For expansion the heat will hav to be supplied to the gas

S) If volume increases then heat supplied is 0

t) If temp increase then work done by gas is positive

1 Answers

106
Asish Mahapatra ·

A. C = Cv - 2R
=> PdV/dT = -2R
=> RdV/V = -2RdT/T
=> lnV = -2lnT + c
=> VT2 = c (Q)

dW = -2RdT (R,S depends on Cv of gas)
A-Q

C. C = Cv + 2R
=> PdV/dT = 2R
=> RdV/V = 2RdT/T
=> lnV = 2lnT + c
=> V/T2 = c (P,R)
dW = 2RdT (T)

so C-PRT

rest can be done similarly...

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