AP Chemistryeasymcq1 pt
Which energy diagram feature corresponds to an endothermic reaction?
A.Products above reactants
B.Products below reactants
C.A single peak
D.No activation energy
Explanation
Core Concept
Absorbing energy raises the system, so products sit higher than reactants — the ΔH arrow points upward.
Correct Answer
AProducts above reactants
More Unit 6: Thermodynamics practice questions
- mediumA heating curve's plateau lengths differ because
- mediumWhich statement about work in chemistry is correct?
- mediumGiven: 2H₂ + O₂ → 2H₂O, ΔH = −571.6 kJ. What is ΔH per mole of water formed?
- mediumWhich statement about enthalpy of formation reactions is correct?
- mediumThe same amount of heat raises iron's temperature more than water's. Why?
Practice more AP Chemistry questions with full explanations
Practice Unit 6: Thermodynamics Questions →