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How is the melting of an ice cube similar to the grinding of chalk into a powder?

April 26, 2017chalk CUBE grinding Ice melting powder similar

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How is the melting of an ice cube similar to the grinding of chalk into a powder?

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So, ice melting is a phase change that is endothermic, meaning it absorbs heat. The grinding chalk is not a phase change and is exothermic, meaning it releases heat.