Thermodynamics(QUIZ-2) 1 / 5 When water is added to quick lime the reaction is Explosive endothermic exothermic photochemical When water is added to quick lime the reaction is exothermicCaO + H2O → Ca(OH)2 △H = -ve 2 / 5 If liquids A and B form an ideal solution the entropy of mixing is zero the free energy of mixing is zero the free energy as well as the entropy of mixing are zero the enthalpy of mixing is zero If liquids A and B form an ideal solution the enthalpy of mixing is zero 3 / 5 What is the entropy change (in JK-1 mol-1) when 1 mole of ice is converted into water at 0℃? (The enthalpy change for the conversion of ice to liquid water is 6.0 kJ mol-1 at 0℃) 20.13 2.013 2.198 21.98 The entropy change; ds = dqrev /T ⇒ ds = 6000J mol-1 / 273K⇒ ds = 21.978JK-1 mol-1 4 / 5 The correct relationship between free energy change in a reaction and the corresponding equilibrium constant KC is -△G = RT lnKC △G0 = RT lnKC -△G0 = RT lnKC △G = RT lnKC The relationship between free energy change in a reaction and the corresponding equilibrium constant KC is △G0 = – RT lnKC or -△G0 = RT lnKC 5 / 5 The enthalpy change in a reaction does not depend upon the state of reactions and products the nature of the reactants and products different intermediate steps in the reaction initial and final enthalpy of the reaction The enthalpy change is a state function so it doesn’t depend on different intermediate steps in the reaction. Your score isThe average score is 0% 0% Restart quiz