The rate of a reaction A doubles on increasing the temperature from$300 \mathrm{to} 310 \mathrm{K}$. By how much, the temperature of reaction B should be increased from $300 \mathrm{K}$ so that rate doubles if activation energy of the reaction B is twice to that of reaction A.

• Correct answer
  A

  $4.92 \mathrm{K}$
• B

  $9.84 \mathrm{K}$
• C

  $19.67 \mathrm{K}$
• D

  $2.45 \mathrm{K}$

Hence, the correct answer is option: 'A'.