Alead (40%) – tin alloy that is cooled from 300 degree c to room temperature starts as a liquid and ends as a solid. describe the stages and composition of the grains and their size if cooled fast or slowly. provide essay answers with a maximum of 500 words.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

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.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?