Question
Which of the following equations is used to obtain enthalpy change of a reaction?
MHT CET
Chemistry
Thermodynamics (C)
2026
MHT CET 2026 (17 April Shift 1)
MHT CET Chemistry Question (2026) — Solution
Options
- A. H = H_P - H_R
- B. H = H_R - H_P
- C. H = H_P + H_R
- D. H = H_P H_R
Answer
A. H = H_P - H_R
Step-by-step solution
The enthalpy change of a reaction is defined as the difference between the sum of the enthalpies of the products and the sum of the enthalpies of the reactants. H = H_P - H_R where H_P is the sum of enthalpies of products and H_R is the sum of enthalpies of reactants. Answer: H = H_P - H_R
Related: Chemistry — Thermodynamics (C) · All PYQ Banks