Question

1. Heat evolved in a reaction is shown by positive sign
Predict the nature of the reaction.

Answer 1

Answer:

It is an exothermic reaction

Answer 2

Answer: nature of reaction is endothermic

Explanation:

Because heat involved in the reaction if it is shown by a positive sign then it means that the ∆H (enthalpy change) is positive which defines that the changes happened in the Thermodynamics system requires energy from external source.