A pressure gauge was attached to a flask filled with carbon dioxide under a slight overpressure. The gas was then discharged through a small hole, the time taken for the

pressure to drop from 75 cm to 50 cm was 52.65 seconds. When the experiment was

repeated with nitrogen (M = 28 g/mol), the same pressure drop was observed after 42

seconds. the molar mass of carbon dioxide

Atank with constant volume contains 2.27 kg of a mixture of water phases (liquid-vapor). in the initial state the temperature and the quality are 127 °c and 0.6, respectively. the mixture is heated until the temperature of 160 oc is reached. illustrate the process in a t-v diagram. then, determine (1) the mass of the vapor in kg at the initial state, (2) the final pressure in kpa.