A reaction, A + B -> C, is considered second order with respect to A and first order with respect to B. What is the effect of simultaneously doubling the concentration of A and B on the rate of reaction?
"second order with respect to A" tells us that doubling the concentration of A will cause the reaction rate to increase by a factor of 4."first order with respect to B" then tells us that doubling the concentration of B will cause the reaction rate to double.If these changes of concentration occur simultaneously the the reaction rate increases by a factor of 8 ie. 2x4=8 for the combined effect of doubling both concentrations.
HJ
Related Chemistry A Level answers
All answers ▸Why does the First Ionisation Energy decrease down a group in the Periodic Table?
When propanal is reacted with potassium cyanide under weakly acidic conditions the resulting mixture does not rotate plane polarised light. Explain this observation.
What is the acid dissociation constant, Ka of the 0.150 mol dm–3 solution of weak acid HA with pH of 2.34?
Heating 3.210g of hydrated magnesium sulfate, MgSO4.XH2O, forms 1.567g of anhydrous magnesium sulfate. Find the value of X and write the formula of the hydrated salt