Consider the Reaction a → B with the Following Data

Multiple Choice

Consider the reaction A → B with the following data: Energy of reactants = 50 kJ/mole;
Energy of products = 70 kJ/mole;
Energy of transition state = 80 kJ/mole.
The reaction is ________, has a heat of reaction of ________ kJ/mole, and the energy of activation is ________ kJ/mole.

A) exothermic; 20; 30
B) endothermic; 20; 30
C) exothermic; 30; 20
D) endothermic; 30; 20