Question 7 of 37beginner🧠 RememberVery Short1 mark
What will be the effect of temperature on rate constant?
Correct Answer
The rate constant increases with increase in temperature. For a chemical reaction with rise in temperature by 10°, the rate constant is nearly doubled.
Exercise: Intext Questions | Q: 3.7 | (Page 24)
For More Understanding
Explanation
According to the Arrhenius equation (k = Ae^(-Ea/RT)), the rate constant is temperature dependent. As temperature increases, the exponential factor e^(-Ea/RT) increases, leading to an increase in the rate constant. The textbook specifically states that for a rise in temperature by 10°, the rate constant is nearly doubled. This is because increasing temperature increases the fraction of molecules that collide with energies greater than the activation energy (Ea).