Sentence:  Assuming thermal equilibrium between the anode surface and the transpiring argon , the gas <WSD>enthalpy</WSD> rise through the anode was calculated according to the relation **f whereby the specific heat of argon was taken as **f . 
Meaning of the word marked with <WSD> tags:  (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure