The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal contact and the combination is isolated. The final temperature of both objects is:

Question

ans is 400 K how?

Answer 1

I got it now.

(2c)(450-T) = (c)(T-300)
Solve for T

Answer 2

Yes, assuming they are the same mass.