Asignal m1(t) is band-limited to 3.6khz, and three other signals – m2(t), m3(t) and m4(t) are band-limited to 1.2khz each. these signals are to be transmitted by means of time division multiplexing. the scheme below shows how the multiplexing requirement may be accomplished.

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.