What is the per capita GDP of China? Be sure to indicate the calendar year that this information represents.

On a average work day more than work place firs are reorted

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.

The process in which the system pressure remain constant is called a)-isobaric b)-isochoric c)-isolated d)-isothermal