A thermally insulated vessel contains $150\mathrm{ }\mathrm{g}$ of water at $0°\mathrm{C}$ . Then the air from the vessel is pumped out adiabatically. A fraction of water turns into ice and the rest evaporates at $0°\mathrm{C}$ itself. The mass of evaporated water will be closest to: (Latent heat of vaporization of water $=2.10\times {10}^6\mathrm{ }\mathrm{J}\mathrm{ }\mathrm{k}{\mathrm{g}}^{-1}$ and Latent heat of Fusion of water $=3.36\times {10}^5\mathrm{ }\mathrm{J}\mathrm{ }\mathrm{k}{\mathrm{g}}^{-1}$ )

• A

  $35 \mathrm{g}$
• Correct answer
  B

  $20 \mathrm{g}$
• C

  $130 \mathrm{g}$
• D

  $150 \mathrm{g}$

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