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The normal boiling point of a liquid is the temperature at which it boils when the external pressure is ____________

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The normal boiling point of a liquid is the temperature at which it boils when the external pressure is ____________

(a) 1 atm

(b) 2 atm

(c) 3 atm

(d) 5 atm

This question was addressed to me in a national level competition.

This question is from Boiling Point topic in portion Criteria of Purity and Characterisation of Materials of Engineering Chemistry I

1 Answer

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Right choice is (a) 1 atm

The explanation: The normal boiling point of a liquid is the temperature at which it boils when the external pressure is 1 atm. The boiling point of a liquid varies depending upon the surrounding environmental pressure.

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