Page 89 - DJJ20063- Thermodynamics 1

DJJ20063- Thermodynamics 1

Substituting in the energy balance equation,

Q = W (3.5)

Thus, for a perfect gas, all the heat added during a constant temperature process is

converted into work and the internal energy of the system remains constant.

For a constant temperature process

V
W = mRT 1 ln 2 = Q
V 1

or

p
W = mRT 1 ln 1 = Q
p 2

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