State whether the given statement is True or False
The upper standard point of a thermometer is273K.
A
True
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B
False
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Solution
The correct option is (B) False.
The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. The melting point of ice is 0∘C=273K
The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure. The boiling point of water is 100∘C=100+273=373K