Isobaric Process - Entropy
Isobaric process - entropy Formula |
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| \( S = \Delta S \; C_p \; [ \; ln \; ( T_f \;/\; T_i ) \; ] \) | ||
| Symbol | English | Metric |
| \( S \) = entropy | \(Btu \;/\; lbm-R\) | \(kJ \;/\; kg-K\) |
| \( \Delta S \) = change in entropy | \(Btu \;/\; lbm-R\) | \(kJ \;/\; kg-K\) |
| \( C_p \) = heat capacity at constant pressure | \(Btu \;/\; R\) | \(kJ \;/\; K\) |
| \( ln \) = natural logarithm | \(dimensionless\) | |
| \( T_f \) = final temperature | \(R\) | \(K\) |
| \( T_i \) = initial temperature | \(R\) | \(K\) |
Isobaric process - entropy Formula |
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| \( S = \Delta S \; ( n\; C_v) \; [ \; ln \; ( T_f \;/\; T_i ) \; ] \) | ||
| Symbol | English | Metric |
| \( S \) = entropy | \(Btu \;/\; lbm-R\) | \(kJ \;/\; kg-K\) |
| \( \Delta S \) = change in entropy | \(Btu \;/\; lbm-R\) | \(kJ \;/\; kg-K\) |
| \( n \) = number of moles | \(dimensionless\) | |
| \( C_v \) = heat capacity at constant volume | \(Btu \;/\; R\) | \(kJ \;/\; K\) |
| \( ln \) = natural logarithm | \(dimensionless\) | |
| \( T_f \) = final temperature | \(R\) | \(K\) |
| \( T_i \) = initial temperature | \(R\) | \(K\) |
