Question

The value of the rate constant of a reaction depends on:

• A. time
• B. activation energy
• C. temperature
• D. half-life value

Answer 1

Answer: (B), (C)

The correct options are
B temperature
C activation energy

Rate constant, $\left(k\right)=A{e}^{\frac{-Ea}{RT}}$

It depends on temperature and activation energy. With an increase of temperature, the rate of reaction increases as molecular collisions and thus, collision frequency increases and with a decrease of temperature, the rate of reaction decreases.

So, options B and C are correct.