MCQ
For an endothermic reaction, the value of delta H is positive because:
Unit-8 Energetics
A Products have higher enthalpy than reactants
B Reactants have higher enthalpy than products
C Both have equal enthalpy
D Enthalpy cannot be measured
Explanation

In endothermic reactions the products store more energy, so H(products) is greater than H(reactants) and delta H is positive.