1. The problem statement, all variables and given/known data A person has 300 g of black coffee at temperature 350 K in a vacuum flask. 100 g of milk at 280 K are added to the coffee (the flask is immediately closed, so the loss of heat to the air is negligible). Assuming that the specific heat capacities of the coffee and milk are equal, calculate the temperature of the white coffee (black coffee + milk) after the milk has been added. 2. Relevant equations C = Q/ delta T T = m1*C1*T1 + m2*C2*T2 / M*C2 + m1*C1 3. The attempt at a solution This is where I am going mad I am not given specific heat capacities thus I have no idea as too how to go about solving this problem.