In a reaction between A and B, the initial rate of reaction was measured for different initial concentration A and B as: A in mol L-1 B in mol L-1 Initial rate in mol L-1 × s 0.2 0.3 5.07× 10-5 0.2 0.1 5.07× 10-5 0.4 0.05 1.43× 10-4 Find the order of reaction with respect to A and B.

Question

In a reaction between A and B, the initial rate of reaction was measured for different initial concentration A and B as: A in mol L-1 B in mol L-1 Initial rate in mol L-1 × s 0.2 0.3 5.07× 10-5 0.2 0.1 5.07× 10-5 0.4 0.05 1.43× 10-4 Find the order of reaction with respect to A and B. (A) 1,0 (B) 1,1 (C) 1.5,0 (D) 1.5,1

Tardigrade Admin · Accepted Answer

Rate of reaction =k[A]m[B]n 5.07× 10- 5=k[0 .2]m[0 .3]n 5.07× 10- 5=k[0 .2]m[0 .1]n 1.43× 10- 4=k[0 .4]m[0 .05]n On solving, m=1.5,n=0

$1, 0$

$1, 1$

$1.5, 0$

$1.5, 1$

Rate of reaction $= k [A]^{m} [B]^{n}$
$5.07 \times 1 0^{- 5} = k [0.2]^{m} [0.3]^{n}$
$5.07 \times 1 0^{- 5} = k [0.2]^{m} [0.1]^{n}$
$1.43 \times 1 0^{- 4} = k [0.4]^{m} [0.05]^{n}$
On solving,
$m = 1.5, n = 0$

A in mol $L^{- 1}$	B in mol $L^{- 1}$	Initial rate in mol $L^{- 1} \times s$
0.2	0.3	$5.07 \times 1 0^{- 5}$
0.2	0.1	$5.07 \times 1 0^{- 5}$
0.4	0.05	$1.43 \times 1 0^{- 4}$

Q. In a reaction between A and B, the initial rate of reaction was measured for different initial concentration A and B as: A in mol L−1 B in mol L−1 Initial rate in mol L−1×s 0.2 0.3 5.07×10−5 0.2 0.1 5.07×10−5 0.4 0.05 1.43×10−4 Find the order of reaction with respect to A and B.

1,0

1,1

1.5,0

1.5,1

Rate of reaction =k[A]m[B]n 5.07×10−5=k[0.2]m[0.3]n 5.07×10−5=k[0.2]m[0.1]n 1.43×10−4=k[0.4]m[0.05]n On solving, m=1.5,n=0

$1, 0$

$1, 1$

$1.5, 0$

$1.5, 1$

Rate of reaction $= k [A]^{m} [B]^{n}$
$5.07 \times 1 0^{- 5} = k [0.2]^{m} [0.3]^{n}$
$5.07 \times 1 0^{- 5} = k [0.2]^{m} [0.1]^{n}$
$1.43 \times 1 0^{- 4} = k [0.4]^{m} [0.05]^{n}$
On solving,
$m = 1.5, n = 0$