[" Q.5In which case change in entropy is negative? "],[" (1) Evaporation of water "],[" (2) Expansion of a gas at constant temperature "],[" (3) Sublimation of solid to gas "],[" (4) "2H(g)rarr H2(g)]

Which change(s) is(are) accompanied by an increase in entropy of the system? (P) Conversion of O_(2)(g) "to" O_(3)(g) (Q) Freezing of water (R ) Sublimation of iodine

Predict in which of the following, entropy increases:(iii) H_2(g)rarr 2H(g) .

For the reaction : C_(3)H_(8)(g) + 5O_(2) (g) to 3 CO_(2) (g) + 4H_(2) O (l) at constant temperature Delta H - Delta U

Addition of inert gas at constant volume to the equilibrium N_2(g)+3H_2(g)iff2NH_3(g) results.

Mention if entropy of the system increases or decreases in each of the following cases: (1) Boiling of water. (2) 2O_(3)(g)to3O_(2)(g) (3) Sublimation of solid iodine (4) NH_(4)Cl(s)toNH_(3)(g)+HC l(g) .

For the reaction : C_(3)H_(8)(g) + 5O_(2) rarr 3CO_(2)(g) + 4H_(2)O(l) a constant temperature, Delta H - Delta U is

State whether DeltaS is positive, negative or zero for the reaction 2H(g)rarr H_2(g) . Explain.

If helium gas is added at constant pressure to the following reaction at equilibrium CO(g) + 3H_2(g) hArr CH_4(g) + H_2O(g) , then