Question

Choose the correct option regarding the statements given below:

Statement 1: On increasing the temperature of a reaction, the effective collision of molecules increases.

Statement 2: Temperature increase the number of molecules with the threshold energy.

• A. Both statements are correct and statement (ii) is the reason for statement (i)
• B. Statement (i) is incorrect but statement (ii) is correct
• C. Statement (i) is correct and statement (ii) is incorrect
• D. Both statements are correct and statement (ii) is not the reason for statement (i)

Answer 1

The correct option is A

Both statements are correct and statement (ii) is the reason for statement (i)

Temperature is one of the factors which increase the rate of the reaction. The energy and speed of the molecules of reactant increases as the temperature increases. The number of molecules with threshold energy increases which increases the number of effective collisions. Hence the rate of the reaction increases.