The derivative of Gibbs free energy over RT with respect to T equals the negative of this quantity over R times T squared.
The derivative of Gibbs free energy over RT with respect to T equals the negative of this quantity over R times T squared. Both terms of this quantity's total differential are positive. This quantity is usually assumed constant when a gas expands through a valve. For an ideal gas, the change in this quantity just equals C-sub-p times the change in (*) temperature. If the change in this quantity is negative, then the equilibrium constant goes down as temperature goes up. For an open system, this quantity replaces the internal energy in the First Law. The change in this quantity exactly equals the heat in a coffee-cup calorimeter. Gibbs energy is defined as it minus temperature times entropy. For 10 points, name this thermodynamic quantity symbolized H.
The derivative of Gibbs free energy over RT with respect to T equals the negative of this quantity over R times T squared.
enthalpy [or H until it is read]