Isobaric Process - Entropy

Written by Jerry Ratzlaff on . Posted in Thermodynamics

Isobaric process is a thermodynamic process where the pressure is kept constant, $$\Delta p = 0$$.

Isobaric process - entropy Formula

$$\large{ S = \Delta S \; C_p \; \left[ ln \left( \frac{T_f}{T_i} \right) \right] }$$

$$\large{ S = \Delta S \; \left( n\; C_v \right) \; \left[ ln \left( \frac{T_f}{T_i} \right) \right] }$$

Where:

$$\large{ S }$$ = entropy

$$\large{ \Delta S }$$ = change in entropy

$$\large{ C_p }$$ = heat capacity at constant pressure

$$\large{ C_v }$$ = heat capacity at constant volume

$$\large{ ln }$$ = natural logarithm

$$\large{ n }$$ = number of moles

$$\large{ T_f }$$ = final temperature

$$\large{ T_i }$$ = initial temperature