Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.. You are wet while coming back to school due to heavy rain. Your school bag as well as the books inside became wet. What type of change is there in your:
a. clothes
b. notebooks
c. tiffin box
d. school bagWater combines with cement to form a paste that binds it together. This paste is altogether a new substance and we can not get back cement and water from the mixture. Therefore, it is an irreversible chemical change.
Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.. You are wet while coming back to school due to heavy rain. Your school bag as well as the books inside became wet. What type of change is there in your:
a. clothes
b. notebooks
c. tiffin box
d. school bagWater combines with cement to form a paste that binds it together. This paste is altogether a new substance and we can not get back cement and water from the mixture. Therefore, it is an irreversible chemical change.
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Explanation:
Explanation: