The process by which a gas changes to a liquid state at some fixed temperature with release of heat energy is called ......................

vaporisation

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fusion

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condensation

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melting

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Solution

The correct option is B condensation
Change of state is the physical process in which a substance changes from one form to another. For example, water vapor condenses to water.

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The process by which a gas changes to a liquid state at some fixed temperature with release of heat energy is called ......................

The correct option is B condensationChange of state is the physical process in which a substance changes from one form to another. For example, water vapor condenses to water.

The correct option is B condensation
Change of state is the physical process in which a substance changes from one form to another. For example, water vapor condenses to water.