Question

For preservation for long durations (years), bacterial cultures are sometimes stored at

-70C. Evaluate how much heat one needs to add to thaw 1g of such a sample to room temperature (25C). You can assume that the cells behave like water/ice. Specific heat capacities (Cp) of water and ice are 4200 KJ/m3 and 2100 KJ/m3    respectively, and the heat of fusion of ice is 333 J/g.

Answer 1