Ice in a freezer is at `–7^(@)C`. 100 g of this ice is mixed with 200 g of water at 15°C. Take the freezing temperature of water to be 0°C, the specific heat of ice equal to `2.2 J//g .^(@)C`, specific heat of water equal to `4.2 J//g .^(@)C`, and the latent heat of ice equal to 335 J/g. Assuming no loss of heat to the environment, the mass of ice in the final mixture is closest to

Options

A. 88 g
B. 67 g
C. 54 g
D. 45 g

Answer

B