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Conversion of a substance from the solid state directly to the gaseous state is
Condensation
Vaporisation
Evaporation
Sublimation
Sublimation is the process of conversion of the solid state to the gaseous state.
Temperature and pressure at which all three states of matter co-exist is called the
Critical point
Optimum point
Triple point
Threshold point
Temperature and pressure at which all three states of matter co-exist is called the triple point.
Dry ice is
Solid H2O
Solid CO2
Liquid CO2
None of these
CO2 directly changes to the solid state which is called dry ice.
When the molecules absorb heat energy, the intermolecular force between the molecules
Increases
Decreases
Remains constant
Can increase or decrease
When the molecules absorb heat energy, the intermolecular force between the molecules decreases.
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