Consider the following reaction:

Question

Consider the following reaction:

A + 2B⇌2C

k=10

What is K for the reaction 2A +4B ⇌ 4C

a)none of these

b)20

c)100

d)the same

Answer 1

2A + 4B ==> 4C is TWICE the original reaction. Therefore, the K for this reaction will be the original K squared. Thus, K = 10² = 100 (answer c)