For the same rise in temperature of one mole of gas at constant volume, the heat required for a non-linear triatomic gas is $\mathrm{K}$ times that required for monatomic gas. The value of $\mathrm{K}$ is

• A

  $1$
• B

  $0.5$
• Correct answer
  C

  $2$
• D

  $2.5$

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