SATHEE: Chemical Kinetics Question 72

Chemical Kinetics Question 72

Question: $A + 2 B \to C + D$ . If $- \frac{d [A]}{d t} = 5 \times 10^{- 4} m o l, l^{- 1} s^{- 1}$ 1, then $- \frac{d [B]}{d t}$ is [DPMT 2005]

Options:

A) $2.5 \times 10^{- 4} m o l, l^{- 1} s^{- 1}$

B) $5.0 \times 10^{- 4} m o l, l^{- 1} s^{- 1}$

C) $2.5 \times 10 - 3 m o l, l^{- 1} s^{- 1}$

D) $1.0 \times 10^{- 3} m o l, l^{- 1} s^{- 1}$

Show Answer

Answer:

Correct Answer: A

Solution:

$A + 2 B \to C + D$

$\frac{- d [A]}{d t} = 5 \times 10^{- 4}$

$- \frac{1}{2} \frac{d [B]}{d t} = \frac{5 \times 10^{- 4}}{2} = 2.5 \times 10^{- 4} m o l^{- 1} \sec^{- 1}$

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Chemical Kinetics Question 72

Question: A+2B→C+D . If −d[A]dt=5×10−4mol,l−1s−1 1, then −d[B]dt is [DPMT 2005]

Options:

Answer:

Solution:

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Question: $A + 2 B \to C + D$ . If $- \frac{d [A]}{d t} = 5 \times 10^{- 4} m o l, l^{- 1} s^{- 1}$ 1, then $- \frac{d [B]}{d t}$ is [DPMT 2005]