Question

The compound A decomposes according to the equation:
A → C + D
Rate (R₁) =k [A]^-1/2
If you halve the concentration of A, you multiply the rate (R₁) by:

Question 11 options:

	a) 0.5
	b) 0.7
	c) 1.0
	d) 1.4
	e) 2.0

Answer 1

For reaction

Differential rate law R=

Where k is rate constant

If A is x M and rate is R₁

_{we get}

_{. Equation 1}

If A is x/2then let the rate be R₂

equation 2

divide equation 2 by equation 1

we get

R₂/R₁= ===1.41

so R₂ becomes 1.41 times of R₁