If the enthalpy of B is greater than that of | vedclass

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Question

(A) The enthalpy change of a reaction is given by $\Delta H = H_P - H_R$,where $H_P$ is the enthalpy of products and $H_R$ is the enthalpy of reactant

Vedclass · Accepted Answer

Endothermic

Vedclass · Answer

(A) The enthalpy change of a reaction is given by $\Delta H = H_P - H_R$,where $H_P$ is the enthalpy of products and $H_R$ is the enthalpy of reactants. Given that the enthalpy of $B$ (product) is greater than that of $A$ (reactant),i.e.,$H_B > H_A$. Therefore,$\Delta H = H_B - H_A > 0$. $A$ reaction with a positive enthalpy change $(\Delta H > 0)$ is classified as an endothermic reaction.

If the enthalpy of $B$ is greater than that of $A$,the reaction $A \to B$ is

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