Thermodynamics

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Heat Capacity

 , where:

C = Heat Capacity (J/K)

m = Mass of sample (kg)

c = Specific Heat Capacity (J/(kg*K))

Heat Capacity at a Constant Pressure

 , where:

cp = Specific Heat Capacity at a Constant Pressure (J/(kg*K))

m = Mass of sample (kg)

Q = Heat Transferred (J)

T = Temperature (K)

p = Constant Pressure (p)

Heat Capacity at a Constant Volume

 , where:

m  = Mass of sample (kg)

Q = Heat energy transferred (J)

T = Temperature (K)

V = Constant Volume (m3)

cv = Specific Heat Capacity at a constant volume (J/(kg*K))

Heat Capacity Ratio

 , where:

 = Heat Capacity Ratio is approximately:

  • 1.4 for Oxygen (Natural Gas)
  • 1.7 for Argon
  • 1.4 for Hydrogen
  • 1.3 for Water (Steam)

CP = Heat Capacity at a Constant Pressure (J/K)

CV = Heat Capacity at a Constant Volume (J/K)

Helmholtz Free Energy

 , where:

A = Helmholtz Free Energy (J)

U = Internal Energy (J)

T = Temperature (K)

S = Entropy (J/K)

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