An ideal gas undergoes isothermal compression from $5\mathrm{ }{\mathrm{m}}^3$ to $1\mathrm{ }{\mathrm{m}}^3$ against a constant external pressure of $4\mathrm{ }\mathrm{N} {\mathrm{m}}^{-2}$. The heat released in this process is $24\mathrm{ }\mathrm{J}\mathrm{ }{\mathrm{mol}}^{-1}{\mathrm{K}}^{-1}$ and is used to increase the pressure of $1$ mole of $\mathrm{Al}$. The temperature of $\mathrm{Al}$ increases by:

• Correct answer
  A

  $\frac{2}{3} \mathrm{K}$
• B

  $1 \mathrm{K}$
• C

  $\frac{3}{2} \mathrm{K}$
• D

  $2 \mathrm{K}$

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