For an endothermic reaction: (A) qₚ is negative. (B) ΔᵣH is positive. (C) ΔᵣH is negative. (D) qₚ is positive.…

For an endothermic reaction: (A) $q_p$ is negative. (B) $\Delta_rH$ is positive. (C) $\Delta_rH$ is negative. (D) $q_p$ is positive. Choose the correct answer from the options given below:
A B and D
B C and D
C A and B
D A and C

Detailed Solution

For an endothermic reaction, heat is absorbed by the system, so $q_p$ is positive (D) and $\Delta_rH=E_{a(forward)}-E_{a(backward)}$ is positive (B), since products are at higher energy than reactants.

Thermodynamics in past papers

63 questions from this chapter have appeared across 21 exam years.

Keep going

Practise Thermodynamics All 63 questions This chapter in 2024 Re-NEET