Question Detail

CHM 101 Thermochemistry II Objective Question
Take CBT

Question

What is the enthalpy of reaction, ΔHᵣₓₙ?
Options
A ΔHᵣₓₙ = ΣH_reactants - ΣH_products
B ΔHᵣₓₙ = ΣH_products - ΣH_reactants
Correct Answer
C ΔHᵣₓₙ = ΣH_products + ΣH_reactants
D ΔHᵣₓₙ = H_products / H_reactants
Correct Answer

Option B is the correct answer.

Detailed Explanation

ΔHᵣₓₙ = ΣnH_products - ΣmH_reactants. If H_products > H_reactants, ΔH is positive (endothermic). If H_products < H_reactants, ΔH is negative (exothermic).

Hint

The notes provide this formula.

Question Info

Course: CHM 101
Topic: Thermochemistry II
Type: Objective
Difficulty: Not specified
Question 801 of 1872
Previous Course Details Next