TASC Chemistry Level 4 Practice Questions - TASC Chemistry Level 4 (CHM415115) External Assessment Exam

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In a potential energy profile diagram for an exothermic reaction, how do the enthalpy of products and sign of ΔH compare to the reactants?

Products have lower enthalpy than reactants, and ΔH is negative. Products have higher enthalpy than reactants, and ΔH is positive. Products have lower enthalpy than reactants, and ΔH is positive. Products have higher enthalpy than reactants, and ΔH is negative.

Correct Answer:

Products have lower enthalpy than reactants, and ΔH is negative.

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