A chemical reaction was carried out at 300 K and 280 K . The rate constants were found to be k1 and k2 respectively. Then

Question

A chemical reaction was carried out at 300 K and 280 K . The rate constants were found to be k1 and k2 respectively. Then (A)  k2 = 4 k1  (B) k2 = 2 k1  (C) k2= 0.25 k1  (D) k2 = 0.5 k1

Tardigrade Admin · Accepted Answer

For every 10Â°C rise of temperature rate constant becomes double. Thus for 20Â°C rise (280 K to 300 K) rate constant becomes four times. i.e k1 = 4k2 or k2 = (1/4) k1 = 0.25 k1

Q. A chemical reaction was carried out at $300 K$ and $280 K$ . The rate constants were found to be $k_{1}$ and $k_{2}$ respectively. Then

$k_{2} = 4 k_{1}$

$k_{2} = 2 k_{1}$

$k_{2} = 0.25 k_{1}$

$k_{2} = 0.5 k_{1}$

For every $10° C$ rise of temperature rate constant becomes double. Thus for $20° C$ rise $(280 K$ to $300 K)$ rate constant becomes four times.
$i . e k_{1} = 4 k_{2}$ or $k_{2} = \frac{1}{4} k_{1} = 0.25 k_{1}$

Q. A chemical reaction was carried out at 300K and 280K . The rate constants were found to be k1​ and k2​ respectively. Then

k2​=4k1​

k2​=2k1​

k2​=0.25k1​

k2​=0.5k1​