Please solve 7th mcq Q7 In a reaction 2HI →H2 + I2, the concentration of HI decrease from - Chemistry -

Question

Please solve 7th mcq

Q7 In a reaction 2HI → H2 + I2, the
concentration of HI decrease from 0 5 ml L–1 to 0
4 mol L–1 in 10 minutes What is the rate of
reaction during this interval?

(a) 5 × 10–3 M min–1 (b) 2
5 × 10–3 M min–1

(c) 5 × 10–2 M min–1 (d) 2
5 × 10–2 M min–1

Ashwini Kumar Mishra · Accepted Answer

Dear student,
Q 7 rate = - 1/2 ( ∆HI / ∆ t ) = - 1/2 ( 0 4 - 0 5 ) /
10 = 0 5 × 10-2 = 5 × 10-3 M
min-1 (option a)
Regards

Please solve 7th mcq Q7. In a reaction 2HI → H2 + I2, the concentration of HI decrease from 0.5 ml L–1 to 0.4 mol L–1 in 10 minutes. What is the rate of reaction during this interval? (a) 5 × 10–3 M min–1 (b) 2.5 × 10–3 M min–1 (c) 5 × 10–2 M min–1 (d) 2.5 × 10–2 M min–1