Q. 45.0( 8 Votes )
What determines the state of a substance, whether it will be solid, liquid or gas?
The state of a substance is determined by the inter-molecular forces present in it. If the inter-molecular forces are so strong that the substance is rigid and has fixed shape and volume, then the state of the substance is solid. The state of a substance is liquid if the inter-molecular forces hold the particles in such a way that the substance has no fixed shape but fixed volume. The state of a substance is gas if the inter-molecular forces among the particles are weak. Gases do not have a fixed shape or volume.
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