Q.
In a zero-order reaction for every 10° rise of temperature, the rate is doubled. If the temperature is increased from 10°C to 100°C, the rate of the reaction will become:
A) 128 times
B) 256 times
C) 512 times
D) 64 times
Explanation
[Solution from source] From 10 °C to 100 °C is a 90° rise, i.e. nine 10° steps. Rate becomes 2⁹ = 512 times. 256 (2⁸) comes from miscounting the steps. The zero order of the reaction does not affect the temperature factor. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.