Veena observes that during winter setting of milk into curd takes more time while during summer, the same process happens faster. She asks about this difference in time taken to her elder sister. She also asks her sister about why certain reactions occur rapidly while others occur slowly. Her sister explains her about the various factors that affect the rate of chemical reactions. Based on the above scenario, answer the following questions.
Why do you think setting of curd occur at different rates during different seasons?

Explanation

The rate of the chemical reaction depends on temperature. Generally, the rate of a reaction increases on increasing the temperature. During winter, the atmospheric temperature is low while during summer, the atmospheric temperature is high. Hence, during winter setting of milk into curd takes more time while during summer, the same process happens faster.