SATHEE: Chemical Kinetics Question 85

Chemical Kinetics Question 85

Question: The reaction $N_{2} O_{5}, (i n, C C l_{4}, s o l u t i o n) \to 2 N O_{2} (s o l u t i o n) + \frac{1}{2} O_{2} (g)$ is of first order in $N_{2} O_{5}$ with rate constant $6.2 \times 10^{- 1} s^{- 1} .$ What is the value of rate of reaction when $[N_{2} O_{5}] = 1.25, m o l e, l^{- 1}$ [AFMC 1998]

Options:

A) $7.75 \times 10^{- 1} m o l e, l^{- 1} s^{- 1}$

B) $6.35 \times 10^{- 3} m o l e, l^{- 1} s^{- 1}$

C) $5.15 \times 10^{- 5} m o l e, l^{- 1} s^{- 1}$

D) $3.85 \times 10^{- 1} m o l e, l^{- 1}, s^{- 1}$

Show Answer

Answer:

Correct Answer: A

Solution:

Rate $= K (N_{2} O_{5}) = 6.2 \times 10^{- 1} \times 1.25$

$= 7.75 \times 10^{- 1} m o l l^{- 1} s^{- 1}$

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Chemical Kinetics Question 85

Question: The reaction N2O5,(in,CCl4,solution)→2NO2(solution)+12O2(g) is of first order in N2O5 with rate constant 6.2×10−1s−1. What is the value of rate of reaction when [N2O5]=1.25,mole,l−1 [AFMC 1998]

Options:

Answer:

Solution:

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