SSC JE Mechanical Engineering 2018 Set 1 Paper

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Question : 150 of 200

Marks: +1, -0

Which formula is the CORRECT depiction of slope of adiabatic curve?

${dP}/{dV}=-γP/V$
${dP}/{dV}= P/V$
${dP}/{dV}=- P/V$
${dP}/{dV}= γP/V$

Solution:

Adiabatic process

pv^\γ = c

p.dv.

γ. v^{γ-1} + v^\γ

.dp = 0
v

{^{γ-1}} . γ

. pdv = – v

^\γ

dp

[{dP}/{dV}=-γ.P/V]

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