05- 1- The term (U+ PV) is called (a) Entropy (b) Heat capacity (c) Enthalpy 2- For irreversible process, the sum of the entropy change of the system and surroundings is always (a) ASystem + AS urr.= 0), (b) ASystem + AS urr> 0 (e) ASystem + ASTO 3- For a reaction at constant temperature and pressure, the reaction tends to proceed spontaneously, if AG is : (a) equal to negative value (b) equal to zero (e) equal to positive value 4- The Gibbs-Helmoheltz equation is taken the form (b) (In) AN RT2 T (e) dslr (a) dG-RT din a (c) AH a(1) 5- The Trouton's rule is taken the form of - (a) Cp=aT (b) v = 21 6- The partial vapour pressure of a solute in a dilute solution is proportional to its molar fraction is called (a) Henery's law (b) Raoult's law (c) Sievert's law 7- In actual solution, the activity of a component is directly -- to the molar fraction of that component. (a) equal (b) not equal (c) proportional