Question

A 300 g glass thermometer initially at 20 ◦C

is put into 297 cm3
of hot water at 83 ◦C.
Find the final temperature of the thermometer, assuming no heat flows to the
surroundings. The specific heat of glass is
0.2 cal/g ·
◦ C and of water 1 cal/g ·
◦ C.

Answer 1

The answer is 72.2 to 3 significant figures