A sample of steam with a mass of 0.552 g and at a temperature of 100 C condenses into an insulated container holding 4.45 g of water at 7.0 C.

Assuming that no heat is lost to the surroundings, what will be the final temperature of the mixture?

2 answers

The sum of the heats gained is zero.

masssteam*Hvapor+masssteam*c*(Tf-100)+masswater(Tf-7)=0
solve for Tf.
17.7