QUESTION 1 A hydrocarbon composed of five carbon atoms and the appropriate numbe

Question

QUESTION 1 A hydrocarbon composed of five carbon atoms and the appropriate number of hydrogen atoms will have a_ O high; strong O unpredictable, unknown O low, weak O low, strong O high, weak vapor pressure because the intermolecular attractions are QUESTION 2 A nucleation center is O the term used to describe all the nuclei of atoms in one drop of a liquid. ?the term used to describe interaction between electrons and nuclei in compounds that can form hydrogen bonds. 0 the layer of molecules on the surface of a liquid that is only subjected to two-dimensional internuclear forces O a group of molecules that starts solidification of the liquid surrounding it. O a collection of ions that forms the center of an ionic crystal during a precipitation reaction. QUESTION 3 Boiling point is affected by altitude because ?the process of boiling is dependent upon atmospheric pressure, which is greater at high altitudes than at sea level O the process of boiling is dependent upon atmospheric pressure, which is less at high altitudes than at sea level. ?the air is generally cooler at high altitudes than at sea level. O intermolecular attractions are less at high altitudes than at sea level. O the air is generally warmer at high altitudes than at sea level

Explanation / Answer

Question 1

A hydrocarbon composed of five carbon atoms and the appropriate number of hydrogen atoms will have a LOW vapor pressure because the intermolecular attractions are STRONG.

This is because when increasing the intensity of the intermolecular forces, it takes a lot of energy to release the molecules from the liquid phase, therefore the liquid will have a relatively low vapor pressure.

Question 2

A nucleation center is a group of molecules that starts solidifications of the liquds surrounding it.

Question 3

The boiling point is affected by altitude because the process of boiling is dependent upon atmospheric pressure, which is less at high altitudes than at sea level

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