SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Always True
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Sometimes True
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Never True
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None of the above
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Detailed explanation-1: -Vapor refers to a gas phase at a temperature where the same substance can also exist in the liquid or solid state, below the critical temperature of the substance. (For example, water has a critical temperature of 374 °C (647 K), which is the highest temperature at which liquid water can exist.)
Detailed explanation-2: -The term “vapour” represents the gaseous state of a substance that exists as a liquid or solid is a true statement.
Detailed explanation-3: -So, Gas is one of the three states of matter which are solid, liquid, gas and plasma, vapor does not classify as such. It is just a substance it is gaseous form. Vapor can turn back and convert into liquid and solid states but gas cannot.
Detailed explanation-4: -Vapour is a mixture of two or more different phases at room temperature, these phases are liquid and gaseous phases. Gas usually contains a single thermodynamic state at room temperature. Vapour has a collection of particles without any definite shape when observed under a microscope.