-URGENT- A closed container with a volume of 2 m3 contains 4 kg of saturated liquid-vapor mixture at 200 kPa pressure. Heat is given from the surrounding environment at 160⁰C until the water in the container is completely saturated vapor. a)Find the entropy change of the system. b) Find the heat transfer to the container. c) Find the total entropy change.

For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor

What is creep? what is stress relaxation?

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.