Question

A student measures the time it takes for two reactions to be completed. Reaction A is completedd in 12 seconds, and reaction B is completed in 2q seconds. What can you conclude about the rates of the reactions?

A. The rate of reaction A is lower
B. The rates of reation A and B are equal
C. The rate of reaction B is lower

Answer 1

A. The rate of reaction A is lower

Further explanation

The reaction rate (v) shows the change in the concentration (reduction of reactants and product additions ) per unit time

Can be formulated:

Reaction: aA ⇒ bB

`\large{\boxed{\boxed{\bold{v~=~-(\Delta A)/(\Delta t)}}}`

or

`\large{\boxed{\boxed{\bold{v~=~+(\Delta B)/(\Delta t)}}}`

A = reactants

B = product

v = reaction rate

t = reaction time

Time of reaction A : 12 s

Time of reaction B : 2 s

Because reaction speed/the rate of reaction is inversely proportional to the time, then A. The rate of reaction A is lower