Question

Assume all temperatures to be exact.
In an experiment, a 0.190-kg piece of a ceramic material at 30 C isplaced in liquid nitrogen at its boiling point to cool in aperfectly insulated flask, which allows the gaseous N_2 toimmediately escape.

A:How many liters of liquid nitrogen will be boiled away duringthis operation? (Take the specific heat of the ceramic material tobe that of glass and the density of liquid nitrogen to be 0.80 ×10^3 kg/m^3 .)

V=? L