Gases Introduction

A gas at STP has a temperature of __ and a pressure __.

• 20 C and 1 atm
• 0^o C and 1 atm
• 0 K and 1 atm
• absolute zero and 1 atm

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

• 372
• 273
• 237
• 732

Which of the following would increase the (gas) pressure of a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

You have a gas that has a pressure of 2 atm and a volume of 10L.  What would be the new volume if the pressure was changed to 1 atm?

• 5 L
• 20 L
• It would stay at 10L
• 1 L

Which of the following has the lowest density?

• Gasses
• Solids
• Liquids
• All mater is the same density

What is 0 Kelvin known as

• No such thing
• Very cold
• Freezing point of Water
• Absolute Zero

If the temperature of a gas increase, the pressure...

• Decreases
• Increases
• Does not change

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

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is NOT a unit of pressure?

• Torr
• mL
• psi
• kPa 

Boyle's law :  The pressure and volume of a gas show a _____ relationship. 

• No relationship 
• Direct 
• Inverse 
• Equal