Given the following kinetic data below calculate the instantaneous rate for the

Question

Given the following kinetic data below calculate the instantaneous rate for the disappearance of C_4H_1Cl at t=100 s. a) 1.9 times 10-4 [Moles s^-1). b) 1.7 times 10-4 [Moles s^-1]. c) 1.6 times 10-4 [Moles s^-1]. d) It cannot be determined. Q(9) Given the following kinetic data below calculate the instantaneous rate for the disappearance of C_4H_9Cl at t=200 s. a)1.9 times 10-4 [Moles s^-1]. b) 1.7 times 10-4 (Moles s^-1]. c) 1.6 times 10-4 [Moles s^-1]. d) 1.5 times 10-4 [Moles s^-1]. Q(10) Given the following kinetic data below calculate the average rate for the disappearance of C_4H_9Cl between t=0 s and t=200 s. a) 1.9 times 10-4 [Moles s^-1]. b) 1.7 times 10-4 [Moles s^-1]. c) 1.6 times 10-4 [Moles s^-1]. d) 1.5 times 10-4 [Moles s^-1].

Explanation / Answer

Q8) option a)

instantaneous rate =- change in concentration / change in time.

At 100 s change in concentration =-( 0.08- 0.1)

Rate =-( 0.08- 0.1)/100-0 = 2 x 10-4Moles /s

Q9) option D

At 200 s the instantaneous rate = - (0.07 - 0.1) /200-0 = 1.5 x 10-4 moles/s

Q10) Average rate is usually determined graphically , however here we take the averge of these three values.

At 50 s , the rate = 2x 10-4

At 100s , the rate = 2x 10-4

at 200s the rate = 1.5 x 10-4

Thus the average = 1.83 x10-4moles /s

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