What is the difference between vapors and gas?

Answer 1

Strictly speaking, the terms "gas" and "vapor" are synonymous.

The term "vapor" is often used to refer to the gaseous phase of something that may also exist as a liquid in equilibrium with the vapor or at a condition not too far removed from the observed condition of the vapor. In this context one might differentiate between a "vapor" and a "gas" by saying that a vapor is a saturated gas.

Vapor is also sometimes used to refer to liquid droplets or particulates small enough to remain suspended in the air such as a mist, cloud, or fumes.

Answer 2

i think gas cant be condensed but vapors can.

Not quite true...

Strictly speaking, the terms "gas" and "vapor" are synonymous.

The term "vapor" is often used to refer to the gaseous phase of something that may also exist as a liquid in equilibrium with the vapor or at a condition not too far removed from the observed condition of the vapor.

Vapor is also sometimes used to refer to liquid droplets or particulates small enough to remain suspended in the air such as a mist, cloud, or fumes.

Answer 3

Vapor refers to the gaseous state of a substance that is typically a liquid or solid at room temperature, through evaporation or sublimation. Gas, on the other hand, is a state of matter in which the substance has completely filled its container and has no definite shape or volume. In essence, all vapors are gases, but not all gases are vapors.