Calculate the energy in calories lost when 30.0 ethanol, , cools from 56.5 degree Celsius to -42.0 degree Celsius.

Answer 1

30 what? grams.?
The freezing point for ethanol is -114 C; therefore, it does not go through a phase change from 56.5 to -42.0
q = mass x specific heat x (Tfinal-Tinitial)