What is the amount of heat (kJ) required if 64.0 kg of H₂O is heated from 25°C to 85°C?

200.0 g Al (C = 0.900 ) at 95°C is added to 85.4 g H₂O at 25°C.  What is the final temperature of the water (and the Al)? 

500.0 g ethyl alcohol at 25°C (C = 2.46 J/g x °C) absorbs 74.0 J of heat energy.  What is the final temperature?

What is the specific heat constant if 621 g of Metal A raises the temperature of 500.0 g of water by 3.20°C and the temperature of the metal decreases by 42.5°C (Sample Problem 6.4)

Assume the eccentric professor has a daily special request for her coffee.  She likes to have the 250.0 mL of coffee frozen at -15.0°C overnight and then want it heated to 95°C when she gets there in the morning.  See Section 12.2 and Problems 12.17 and 12.19. 

(∆H_fusion = 6.02 kJ/mol;                                             ∆H_vaporization = 40.67 kJ/mol;

C_solid = 33.1 J/(molx°C); C_liquid = 75.4 J/(molx°C); C_gas = 33.1 J/(mol x °C)

Boiling point = 100°C;                                              Melting point = 0°C)

(Assume coffee and milk have all the physical properties of water.)

How much heat energy is required to heat the coffee as per the special request?

Identify the name and process of each phase change in the coffee.