If you have 770 m3 within your home, what would be the total mass of air inside your house at 20C? If there was a temperature decrease to -10C, what amount of air enters or leaves the house? PLEASE SHOW ALL WORK AND UNITS.

Occurs when an energy source transfers heat directly to another subject space; an example would be an object becoming warm by sitting in the sunshine

The necleus of an atom is made up of what subatomic particles?

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.