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With the help of a thermometer find out the melting point of ice and boiling point of milk |
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Answer» The process of changing of a solid into liquid on heating is called melting. The temperature at which a soild completely changes into liquid state is called its melting point. To find melting point of ice: We heat ice filled beaker kept on a tripod stand by sprit lamp. When ice is completely changed into water we measure its temperature by thermometers and note it. This temperature is called melting point of ice. We find that the melting point of ice is 0°C. When any liquid is heated, it boils and this process is called boiling and the temperature at which a liquid starts boiling is called its boiling point. To find the boiling point of milk: We take milk in a beaker and heat it by sprit lamp on a tripod stand. When milk starts boiling, we measure the temperature of milk by thermometer. The temperature at which milk starts boiling is called boiling point of milk. |
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