1)When the temperature of water decreases, it will freeze (for the case of ordinary pressures like atmospheric pressure). Why does the freezing happen ? The temperature for freezing is lowered if an impurity (like salt) is added to the water. Why is that ? 2) Does a smooth solid ball roll down a hill faster than a smooth solid cylindrical battery ? If so, then why ?

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1 When the temperature of water decreases it freezes due to a decrease in thermal energy At lower te... View the full answer