Answers ISP ONLY Chemistry S2 Q3000XX Unit Test — Unit testQuestion 3

3

QuizMultiple Choice

Unit Test — Unit test

Question 3 • ISP ONLY: Chemistry S2 Q3000XX

The overall change in enthalpy of a reaction depends only on

Answer

A

the reactants and the products.

B

the path that is taken from the reactants to the products.

C

the reactants and the catalysts only.

D

the reactants, the products, and the catalysts.

Explanation

Enthalpy is a state function, so the overall enthalpy change depends only on the starting and ending states of the reaction. Therefore, it depends on the reactants and the products, not on the pathway taken or on a catalyst.

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