An object with a mass of 4 kg4kg, temperature of 270 ^oC270oC, and a specific heat of 25 J/(kg*K)25JkgK is dropped into a container with 36 L 36L of water at 0^oC 0oC. Does the water evaporate? If not, by how much does the water's temperature change?

1 Answer
Aug 30, 2017

Yes, the water evaporates.

Explanation:

According to principle of calorimetry,

Q_o = Q_wQo=Qw

(mCDeltaT)_o=(mCDeltaT)_w

4xx25xx(270-T_f) = 36xx4.2xxT_f

rArr T_f ~~ 107.5^oC

As T_f>100^oC , the water evaporates