Question

What is a vapor?

A. A substance that is in the gas phase at a temperature at which it
would normally be a solid or liquid
B. A substance that has a much higher melting point and boiling point than other similar substances
C. A substance that forms a gas, but only at very high temperatures
D. A substance that is always in the solid or liquid phase at room
temperature

Answer 1

C. Substance that forms, the gas, but only at very high temperatures.

Answer 2

C

Step-by-step explanation:

PHYSICS

a gaseous substance that is below its critical temperature, and can therefore be liquefied by pressure alone.