As shown in Fig., a 8 m3 tank contains H2O initially at 207 kPa and a quality of 80%. The tank is connected to a large steam line carrying steam at 1380 kPa, 232°C. Steam flows into the tank through a valve until the tank pressure reaches 690 kPa and the temperature is 204°C, at which time the valve is closed. Determine the amount of mass, in kg, that enters the tank and the heat transfer between the tank and its surroundings, in kJ.

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.

What is a monomer? how do they form a ploymer from the view point of chemical bonding?