Question

Which statement is true if the Hrxn of a reaction is positive?

A.)The reaction is endothermic.
B.)The reaction is exothermic.
C.)There is more reactant than product.
D.)There is more product than reactant.

Answer 1

Answer:A

Step-by-step explanation:

Answer 2

Answer: The correct answer is Option A.

Step-by-step explanation:

Endothermic reactions are defined as the reactions in which potential energy of the reactants is less than the potential energy of the products. The total enthalpy change of the reaction
`(\Delta H_(rxn))` comes out to be positive. Energy is absorbed during this reaction.

`\Delta H_(rxn)=\Delta H_(products)-\Delta H_(reactants)=+ve`

Exothermic reactions are defined as the reactions in which potential energy of the products is less than the potential energy of the reactants. The total enthalpy change of the reaction
`(\Delta H_(rxn))` comes out to be negative. Energy is released during this reaction.

`\Delta H_(rxn)=\Delta H_(products)-\Delta H_(reactants)=-ve`

From the above information, the correct answer is Option A.