Question

The rate constant of the reaction $A \to B$ is $0.6 \times 10^{-3}$ mole per second. If the concentration of A is 5 M, then concentration of $B$ after 20 minutes is :

• A. 0.36 M
• B. 0.72 M
• C. 1.08 M
• D. 3.60 M

Answer 1

Answer: (B)

0.72 M

Answer 2

For zero order reaction : x = K.t = $0.6 \times 10^{-3} \times 20 \times 60$ x = 0.72 M