Gas Laws and Molar Volume

What is the correct temperature on the Kelvin scale equal to 30^oC?

• 303K

• 243K

• 313K

• 253K

When the temperature is constant (k) inside a balloon, if you add pressure on it, the volume will ..... 

• Decrease
• Increase
• Not Change at all
• Particles will solidify 

Pick the best answer to explain all properties of gases....

• They're fluids 
  Can be compressed
  Little space between particles 
• They're solids 
  Can be compressed
  Lots of space between particles 
• They're fluids 
  Cannot be compressed
  Lots of space between particles 
• They're fluids 
  Can be compressed
  Lots of space between particles 

Tags

NGSS.MS-PS3-4

A balloon of Argon gas has a volume of 150. mL when its pressure is 0.647 atm. What will the pressure of the gas be at a volume of 98.3 mL if the temperature remains constant?

• 0.987 atm
• 1.53 atm
• 2.36 atm
• 97.1 atm

A balloon of helium gas occupies a volume of 1 L at 32°C. What volume will the gas occupy if we put it in a ice bath at a temperature of 0°C, assuming pressure remains constant? HINT: Temperature units MUST be in Kelvin!

• 0 L
• 1.11 L
• 895 mL
• 632 mL

The gas in an aerosol can exerts a pressure of 3.00 atm at 25°C. Directions on the can warn the user not to keep the can in a place where the temperature exceeds 100°C. What would the gas pressure in the can be at 100°C?

• 3.76 atm
• 2.40 atm
• 12 atm
• 0.75 atm

For his chemistry demonstration, Davy filled up a 5 L balloon with nitrous oxide gas at 25°C and an atmospheric pressure of 1.08 atm. For easier transportation he stored it in a pressurized container at 1.5 atm and temperature of 5°C. What volume will the balloon have?

• 9.77 L
• 3.36 L
• 7.56 L
• 4.35 L

What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium with excfess water according to the following reaction?
1Mg + 2H₂O --> Mg(OH)₂ + H₂

• 62L
• 65L
• 31L
• 124L

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the volume of 2 moles of gas at STP?

• 22.4 L
• 44.8 L
• 11.2 L
• 2 L

2CO + O₂ −-> 2CO₂

How many liters of carbon dioxide at STP are produced from 10.0 L of carbon monoxide at STP?

• 10.0 L

• 20.0 L

• 5010 L

• 0.0199

Tags

NGSS.HS-PS1-7