Question

Question 8 (3 points) Consider the melting and boiling points of the following substances: Substance Melting Point (°C) Boiling Point (°C) hydrogen, H2 -259 -253 silicon tetrahydride, SiH4 -185 -112 silicon, Si 1414 3265 Explain the difference in these physical properties between the three substances by discussing the forces involved in these changes of state. [A3]

          Question 8 (3 points)
Consider the melting and boiling points of the following substances:

Substance	Melting Point (°C)	Boiling Point (°C)
hydrogen, H2	-259	-253
silicon tetrahydride, SiH4	-185	-112
silicon, Si	1414	3265

Explain the difference in these physical properties between the three substances by
discussing the forces involved in these changes of state. [A3]

Question 8 (3 points)
Consider the melting and boiling points of the following substances:

Substance Melting Point (°C) Boiling Point (°C)
hydrogen, H2 -259 -253
silicon tetrahydride, SiH4 -185 -112
silicon, Si 1414 3265

Explain the difference in these physical properties between the three substances by
discussing the forces involved in these changes of state. [A3]

Added by Javier M.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

08/28/2023

Step 1

Hydrogen (H₂) is a diatomic molecule with nonpolar covalent bonds. The primary intermolecular force between hydrogen molecules is London dispersion forces, which are relatively weak. This results in low melting and boiling points for hydrogen: Show more…

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