A refrigerator with a 50 W motor is to be used to freeze 2 kg of water at 273 K in an insulated vessel. The outside temperature is 300 K . The smallest possible time to do this is (take the latent heat of fusion of water to be $3.33 \times 10^5 \mathrm{~J}^{\mathrm{J}} \mathrm{kg}^{-1}$ )

• A

  $2.51 \times 10^3 \mathrm{~s}$
• B

  $2.80 \times 10^3 \mathrm{~s}$
• C

  $1.19 \times 10^3 \mathrm{~s}$
• Correct answer
  D

  $1.31 \times 10^3 \mathrm{~s}$

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