A reaction at 1 bar is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following:

• A

  $∆\mathrm{H}$ is negative while $∆\mathrm{S}$ is positive
• B

  Both $∆\mathrm{H}$ and $∆\mathrm{S}$ are negative
• C

  $∆\mathrm{H}$ is positive while $∆\mathrm{S}$ is negative
• Correct answer
  D

  Both $∆\mathrm{H}$ and $∆\mathrm{S}$ are positive

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