1 gm of steam at 100⁰C is mixed with 4 gm of ice at 0⁰ C. Then final temperature of the mixture is ……

Latent heat of fusion = 80 cal/gm

Latent heat of evaporation = 540 cal/gm

• A

  $72{ }^{\mathrm{o}}\mathrm{C}$

• B

  $85{ }^{\mathrm{o}}\mathrm{C}$

• C

  $64{ }^{\mathrm{o}}\mathrm{C}$

• D

  $52{ }^{\mathrm{o}}\mathrm{C}$