5 g of water at `30^@C` and 5 g of ice at `-20^@C` are mixed together in a calorimeter Find the final temperature of the mixure. Assume water equivalent of calorimeter to be negligible, sp. Heats of ice and water are 0.5 and `1 cal//g C^@`, and latent heat of ice is `80 cal//g`
A. `30^(@)C`
B. `0^(@)C`
C. `-20^(@)C`
D. `10^(@)C`