Once the heat (q) associated with the crystallization of beeswax has been calculated, you will be asked to calculate the enthalpy (H) in Joules/gram of beeswax for the crystallization of beeswax. Let's say hypothetically that an enthalpy of crystallization value of 225 J/g has been determined for beeswax.

Now in designing a coffee cup lined with beeswax, we would want to determine how many grams of beeswax would be required to absorb the heat (q) from the hot coffee when the coffee cools from 90 C to 65 C (melting point of the wax) . Answer questions 5 and 6 pertaining to this scenario.

5. Dr. Riley pours 374 mL of hot coffee into a beeswax PCM lined coffee cup. The coffee cools from 92 to 65 deg C (melting point of the beeswax). Calculate the heat (q) in Joules, that would be absorbed by the beeswax. The following assumptions may be made: 1) the density of coffee is similar to water (1.00 g/mL), and 2) the heat capacity of coffee is similar to that of water.

6. How many grams of beeswax would be required to absorb the Joules of energy from coffee (ignore the heat required to melt the beeswax) that you calculated in question 5?