The dissociation vapour pressure of NH_4Cl at 427The dissociation vapour pressure of NH_4Cl at 427 degree C is 608 kPa but at 459 degree C it has risen to 1115 kPa. Calculate the equilibrium constant, the standard reaction Gibbs energy, the standard enthalpy, and the standard entropy of issociation, all at 427 degree C. Assume that the vapour behaves as a perfect gas and that delta H^theta and delta S^theta are independent of temperature in the range given.Show transcribed image text The dissociation vapour pressure of NH_4Cl at 427 degree C is 608 kPa but at 459 degree C it has risen to 1115 kPa. Calculate the equilibrium constant, the standard reaction Gibbs energy, the standard enthalpy, and the standard entropy of issociation, all at 427 degree C. Assume that the vapour behaves as a perfect gas and that delta H^theta and delta S^theta are independent of temperature in the range given.