Question
Chemistry Question on Chemical Kinetics
The decomposition of NH3 on platinum surface is zero order reaction. If k = 2.5 x 10-4 mol L-1 s-1 the rate of production of H2 is
A
2.5 x 10-4 mol L-1 s-1
B
7.5 x 10-4 mol L-1 s-1
C
5.0 x 10-4 mol L-1 s-1
D
10.0 x 10-4 mol L-1 s-1
Answer
2.5 x 10-4 mol L-1 s-1
Explanation
Solution
Since the decomposition of NH3 on a platinum surface is a zero-order reaction, the rate of production of H2 is equal to the rate constant (k).
Given: k = 2.5 x 10^(-4) mol L^(-1) s^(-1)
Therefore, the rate of production of H2 is 2.5 x 10^(-4) mol L^(-1) s^(-1).
Hence, the correct answer is 2.5 x 10^(-4) mol L^(-1) s^(-1).