Multiple Choice
For the element iodine, what is its normal boiling point (at )?
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1. Intro to General Chemistry
Physical Properties
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Which of the following is the normal boiling point of hydrogen (H2) at ?
A
(approximately )
B
(approximately )
C
(approximately )
D
(approximately )
Verified step by step guidance1
Understand that the normal boiling point of a substance is the temperature at which its vapor pressure equals 1 atmosphere (1 atm) pressure.
Recall that hydrogen (H2) is a diatomic molecule with very weak intermolecular forces (London dispersion forces), which results in a very low boiling point compared to many other substances.
Recognize that the boiling point of hydrogen is typically given in Kelvin (K) and Celsius (°C), and the problem provides several options to choose from.
Use reference data or a reliable chemistry source to find the normal boiling point of hydrogen at 1 atm, which is known to be very low due to its weak intermolecular forces and light molecular weight.
Compare the given options to the known boiling point of hydrogen and identify the correct value, which is approximately 20.3 K (or about -252.9 °C).
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