College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 74

In an experiment, a 0.150-kg piece of a ceramic material at 20 °C is placed in liquid nitrogen at its boiling point to cool in a perfectly insulated flask, which allows the gaseous N 2 to immediately escape. Flow many liters of liquid nitrogen will be boiled away during this operation (Take the specific heat of the ceramic material to be that of glass and the density of liquid nitrogen to be 0.80 × 10 3 kg/m 3.)