Question

A sample of 60 grams of water at 56°C is mixed in a styrofoam container with 89 grams of water at 30°C. What is the final temperature of the water? Assume the styrofoam container is a closed system.


48°C

40°C

38°C

51°C

Answer 1

warmer water loses heat; cooler water gains heat ... heat lost equals heat gained

60 (56 - t) = 89 (t - 30)

Answer 2

There is not even that answer on the freaking answer choice thing you idiot