For a given chemical reaction Concentration of C changes from 10 mmol dm to 20 mmol dm in 10 seconds — Chemical Kinetics Chemistry Question

Question

For a given chemical reaction Concentration of C changes from 10 mmol dm to 20 mmol dm in 10 seconds. Rate of appearance of D is 1.5 times the rate of disappearance of B which is twice the rate of disappearance A. The rate of appearance of D has been experimentally determined to be 9 mmol dm s . Therefore the rate of reaction is _____ mmol dm s . (Nearest Integer) –3 –3 –3 –1 –3 –1