At a certain temperature T, the endothermic reaction `A rarr B` proceeds almost to completion.The entropy change is :

In which of the following does the reaction go almost to completion?

Complete the given redox reaction Zn+AgCN rarr

In which of the following does the reaction go almost to completion ?

In which of the following does the reaction go almost to completion ?

…………….. Reactions never go to completion whereas ……………. Reactions proceed almost to completion.

An endothermic reaction proceeds faster in the forward reaction with decrease in temperature.

Assertion (A): The endothermic reactions are favoured at lower temperature and the exothermic reactions are favoured at higher temperature. Reason (R ) : when a system in equilibrium is disturbed by changing the temperature, it will tend to adjust itself so as to overcome the effect of the change.

Complete the following reactions : C + H_2 rarr

Gibbs-Helmoholtz equation relates the free energy change to the enthalpy and entropy changes of the process as (DeltaG)_(PT) = DeltaH - T DeltaS The magnitude of DeltaH does not change much with the change in temperature but the enrgy factor T DeltaS changes appreciably. Thus, spontaneity of a process depends very much on temperature. The enthalpy change for a certain reaction at 300K is -15.0 kcal mol^(-1) . The entropy change under these conditions is -7.2 cal K^(-) mol^(-1) . The free enegry change for the reaction and its spontaneous//nonspontaneous character will be

Assertion (A) : The value of K increases with increase in temperature in case of endothermic reaction Reason (R) : The increase in temperature shifts the equilibrium in the backward direction in case of exothermic reaction.