Home Chemistry Thermodynamics and Thermochemistry Statement Based Select the correct statements from the follo…
Chemistry Thermodynamics and Thermochemistry Statement Based Single Correct MCQ
Published on: August 14, 2026

Select the correct statements from the following.

A. Water requires heat for evaporation, at constant temperature of its boiling point and at constant pressure.
B. Decomposition of is an exothermic process.
C. The coefficients in a balanced thermochemical equation refer to the number of molecules of reactants and products involved in the reaction.
D. The numerical value of refers to the number of moles of substances specified by an equation.
E. Enthalpy is an extensive quantity.

Choose the correct answer from the options given below.

A
B, C and D
B
C and D
C
A, B and E
D
A, D and E

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Text Solution

Verified by Experts
The correct answer is:
D

Among the given statements, only D and E are correct while the other B and C are

incorrect. Their correct form are:

• Decomposition of is an endothermic process.

• The coefficients in a balanced thermochemical equation refer to the number of moles of reactants and products involved in the reaction.

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