Multiple Choice
At what temperature does pure water boil at standard atmospheric pressure, expressed in kelvin?
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1. Intro to General Chemistry
Temperature
Multiple Choice
What is the boiling point of water in kelvins at standard atmospheric pressure?
A
212 K
B
100 K
C
273 K
D
373 K
Verified step by step guidance1
Understand that the boiling point of a substance is the temperature at which its vapor pressure equals the external pressure, causing it to change from liquid to gas.
Recognize that the standard atmospheric pressure is 1 atm (or 101.3 kPa), which is the pressure at sea level.
Recall that the boiling point of water at 1 atm pressure is 100 degrees Celsius.
Convert the boiling point from Celsius to Kelvin using the formula: \(T(K) = T(^\circ C) + 273.15\).
Apply the conversion to find the boiling point of water in kelvins: \(373.15\,K\) (approximately 373 K).
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