Answer to Question #174996 in General Chemistry for Mikaela

Question

A. Answer the question thoroughly.

1. Some chemicals, like hydrogen peroxide, are prone to decomposition by photocatalysis? How can you prevent photocatalysis? 

2. Can storing batteries in a cold place, such as refrigerator of freezer, help prolong life? Justify your answer.

B.

The rate law for the reaction of NO with Cl2 was found to be

2 NO(g) + Cl2(g) -> 2 NOCl(g) Rate= k[NO]² [Cl2]

a. What is the order of the reaction with respect to NO? With respect to Cl2?

b. Suppose that you triple the concentration of NO and simultaneously decrease the concentration of Cl2 by a factor of 8. Will the reaction be faster or slower under the new conditions? How much faster or slower? (Assume that the temperature is the same in both sets of conditions.)

Answer 1

A.

1.Without electron acceptors, the limitation attributed to the recombination of pairs would reduce the photocatalytic efficiency and cause radiation energy loss.

2. It's partially true, but you're better off not doing it.But even when they're not plugged in, those electrons can sneak invisibly out of the battery, draining their capacity through a process called self-discharge

B.

1.Order 2

2. The reaction will be faster.