Calculate the entropy change `(J//mol K)` of the given reaction. The molar entropies `(J//K-mol)` are given in brackets after each substance:
`2PbS(s)[19.2]+3O_(2)(g)[205.1]`
` to 2PbO(s)[66.5]+2O_(2)(g)[248.2]`

Calculate the entropy change ( DeltaS ) for the following reaction at 25^@C . SO_2(g) + 1/2O_2(g) to SO_3(g) The absolute entropies at 25^@C and 1 atm pressure for SO_2(g), O_2(g) and SO_3(g) are 248.5, 205.0 and 256.2 J K^(-1) mol^(-1) respectively.

Calculate the standard entropy change of the following reaction at 25^@C : SO_2(g)+1/2O_2(g)rarr SO_3(g) at 25^@C tempr.and 1 atm pressure the standard entropy of SO_2(g) , O_2(g) and SO_3(g) are 248.5,205.0 and 256.2JK^(-1)mol^(-1) respectively

At 1 atm and 298K DeltaH^(0) value of the reaction 2H_(2)(g)+O_(2)(g)to2H_(2)O(l) is -572 kJ. Calculate the change in entropy of the system and surroundings for this reaction. Is this reaction spontaneous at that temperature and pressure? Given: Standard molar entropies of H_(2)(g),O_(2)(g)&H_(2)O(l) at 298K are 130.6, 205.0 and 69.90 J*K^(-1)*mol^(-1) respectively.

Calculate the entropy of Br_(2)(g) in the reaction H_(2)(g)+Br_(2)(g)rarr2HBr(g), Delta S^(@)=20.1 JK^(-1) given, entropy of H_(2) and HBr is 130.6 and 198.5 J mol^(-1)K^(-1) :-

Calculate the entropy of Br_(2)(g) in the reaction H_(2)(g)+Br_(2)(g)rarr2HBr(g), Delta S^(@)=20.1 JK^(-1) given, entropy of H_(2) and HBr is 130.6 and 198.5 J mol^(-1)K^(-1) :-

Calculate the change in entropy for the following reaction 2CO(g) +O_(2)(g) rarr 2CO_(2)(g) Given: S_(CO)^(Theta)(g)=197.6 J K^(-1)mol^(-1) S_(O_(2))^(Theta)(g)=205.03 J K^(-1)mol^(-1) S_(CO_(2))^(Theta)(g)=213.6 J K^(-1)mol^(-1)

Calculate the change in entropy for the following reaction 2CO(g) +O_(2)(g) rarr 2CO_(2)(g) Given: S_(CO)^(Theta)(g)=197.6 J K^(-1)mol^(-1) S_(O_(2))^(Theta)(g)=205.03 J K^(-1)mol^(-1) S_(CO_(2))^(Theta)(g)=213.6 J K^(-1)mol^(-1)

Calculate the entropy changes for the following reactions : (i) 2CO(g) + O_(2)(g) to 2CO_(2)(g) (ii) 2H_(2)(g) + O_(2)(g) to 2H_(2)O(l) Entropies of different compounds are : CO(g) = 197.6 J K^(-1) "mol"^(-1), O_(2)(g) = 205.03 J K^(-1) "mol"^(-1) CO_(2)(g) = 213.6 JK^(-1) "mol"^(-1), H_(2)(g) = 130.6 J K^(-1) "mol"^(-1) H__(2)O(l) = 69.96 J K^(-1) "mol"^(-1)