For the reaction 2 A + 4 B → 2 C + 4 D, what is the absolute magnitude of the rate of change for [B] when [C] is increasing at 3.1 M/s?

Answer 1

2 A + 4 B → 2 C + 4 D

rate=-2x -4x +2x +4x

If the rate of C is 3.1, the rate of B will be twice as fast and negative.

^rateB/_rateC=^-4B/_+2C

x/3.1=4/2

x=6.2

rate_B= -6.2 M/s