Properties and Uses of Methane

The video discusses methane's low boiling point of -161.5°C, its role as a component of natural gas, and its potency as a greenhouse gas. It explains the phase changes of methane from liquid to gas and solid, highlighting the weak London dispersion forces due to its nonpolar, symmetrical molecular structure. A comparison is made with oxygen's boiling point to illustrate the extreme cold required for methane to liquefy.

What is the boiling point of methane in degrees Celsius?

• -183.3

• -50.0

• -100.0

• -161.5

Which of the following is a use of methane?

• Transportation

• Lighting

• Cooling

• Cooking

How does methane compare to CO2 in terms of greenhouse effect?

• More potent

• Equally potent

• Less potent

• Not a greenhouse gas

What phase is methane in at temperatures below its boiling point but above its freezing point?

• Solid

• Gas

• Liquid

• Plasma

What type of intermolecular forces are present in methane?

• Hydrogen bonds

• Ionic bonds

• Dipole-dipole interactions

• London dispersion forces

Why is methane considered nonpolar?

• It is a gas at room temperature

• It has a symmetrical structure

• It has a high boiling point

• It contains hydrogen

What is the primary reason for methane's low boiling point?

• Strong hydrogen bonds

• Weak London dispersion forces

• High molecular weight

• Presence of carbon

What is the boiling point of oxygen in degrees Celsius?

• -161.5

• -50.0

• -183.3

• -100.0

At what temperature does air turn into a liquid?

• 100 degrees Celsius

• 0 degrees Celsius

• -183.3 degrees Celsius

• -161.5 degrees Celsius

Which gas has a lower boiling point, methane or oxygen?

• Oxygen

• Methane

• Both have the same boiling point

• Neither has a boiling point