Bellwork 1 Week 8 3rd Nine Weeks

If a balloon is cooled what will happen to the volume?

• Volume will increase
• Volume will decrease
• Volume will not change

Based on the relationship between gas temperature and pressure, what will happen to the particles inside a balloon as they are heated?

• The particles lose energy during heating. As they lose energy less collisions occur so pressure decreases.

• The particles gain energy during heating. As they gain energy less collisions occur so pressure increases.

• The particles lose energy during heating. As they lose energy less collisions occur so pressure increases.

• The particles gain energy during heating. As they gain energy more collisions occur so pressure increases.

Pressure increases when..

• Number of particles increase

• Temperature decreases.

• Volume increases.

• Number of particles decrease.

According to kinetic molecular theory, more moles of gas means more pressure at the same volume and temperature because...

• more moles = more collisions

• more moles = higher gas constant

• more moles = higher kinetic energy

• more moles = more problems

A helium balloon has a volume of 500 mL at room temperature (22 °C). What is its volume if it is left outside and discovered in the morning when it is 5 °C outside? Pressure is constant.

• 471 mL

• 114 mL

• 750 mL

• 500 mL

Answer explanation

$\frac{V_1}{T_1}=\frac{V_2}{T_2}$

Temperature must be in Kelvin.

100 degrees Celsius is equal to _______ Kelvin. 

• 0 K
• 273 K
• 173 K
• 373 K

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

In order to convert to Kelvin, you add ______ to the Celsius measurement.

• 372
• 273
• 237
• 732

What about gases can be measured?

• Pressure and Volume
• Temperature, Volume, and Pressure
• Volume and Temperature
• Pressure, Temperature, Volume, and Moles

What is 50 °C in Kelvin?

• 223
• 323
• 100
• 50