SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What happens to the mass of a substance when it changes from a solid to a liquid?
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It increases
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It decreases
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It stays the same
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None of the above
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Explanation:
Detailed explanation-1: -When a substance changes its state, there will not be any change in the mass of substance .
Detailed explanation-2: -The change from the solid state to the liquid state is called melting. The temperature at which a substance changes from a solid to a liquid is called the melting point.
Detailed explanation-3: -The particles in a substance stay the same when it changes state-only their closeness, arrangement or motion change. This means that the mass of the substance stays the same. For example, 10 g of water boils to form 10 g of steam, or freezes to form 10 g of ice. This is called conservation of mass .
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