Question

Temperature is one of the most influencing factors on the rate of chemical reactions. However, sometimes it is observed that the actual effect of temperature on the rate of a reaction is much smaller than expected. Explain possible reasons

Answer 1

=> Usually, an increase in temperature is accompanied by an increase in the reaction rate.

=> Temperature is a measure of the kinetic energy of a system, so higher temperature implies higher average kinetic energy of molecules and more collisions per unit time.

=> A general rule of thumb for most (not all) chemical reactions is that the rate at which the reaction proceeds will approximately double for each 10°C increase in temperature. => Once the temperature reaches a certain point, some of the chemical species may be altered (e.g., denaturing of proteins) and the chemical reaction will slow or stop.