Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Which one of the following changes would alter the rate constant (k) for the reaction 2A + B → X products?
Options
A Increasing the concentration of A
B Increasing the concentration of B
C Increasing the temperature
Correct Answer
D Measuring k again after the reaction has run for a while
Correct Answer

Option C is the correct answer.

Detailed Explanation

The rate constant k depends only on temperature and activation energy (and presence of a catalyst). Changing concentrations does not affect k.

Hint

k is constant at a given temperature.

Question Info