When a vapor condenses Group of answer choices heat energy leaves the substance. the temperature of the substance decreases. heat energy enters the substance. the temperature of the substance increases.

i believe you are right for all except the 3rd ( look at sqdancefan his answer is much better)

if you're asking what comes out, it's steam.

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.