Question

The energy diagram of a reaction $P + Q \rightarrow R + S$ is given what are A and B in the graph?

• A. A $\rightarrow$ activation energy , B $\rightarrow$ heat of reaction
• B. A $\rightarrow$ threshold energy , B $\rightarrow$ heat of reaction
• C. A $\rightarrow$ heat of reaction , B $\rightarrow$ activation energy
• D. A $\rightarrow$ potential energy , B $\rightarrow$ energy of reaction

Answer 1

Answer: (A)

A $\rightarrow$ activation energy , B $\rightarrow$ heat of reaction

Answer 2

Activation energy is the energy provided to the reactants above the energy possessed by the reactants heat of reaction is the difference in energy of reactants and products.