Gases

A 7.00 L sample of argon gas at 420. K exerts a pressure of 625 kPa.  If the gas is compressed to 1.25 L and the temperature is lowered to 350 K, what will be its new pressure in atm?

• 10.4 atm
• 2920 atm
• 2916.7 atm
• 28.8 atm

How many grams of N₂O₅ gas  are in a sample that has a volume of 2.00 Liters at 298 K and 100. kPa of pressure.  

• 8.72 grams
• 0.0807 grams
• 12.3 grams
• 883 grams

At a constant temperature, the volume decreases.  What happens to the pressure?

• increases
• decreases
• stays the same

At a constant volume, the pressure increases.  What happens to the temperature?

• increases
• decreases
• stays the same

At a constant pressure, the volume decreases.  What happens to the temperature?

• increases
• decreases
• stays the same

Tags

NGSS.MS-PS1-4

Under which of the following conditions do REAL gases behave most like IDEAL gases?

• High pressure and high temperature
• High pressure and low temperature
• Low pressure and low temperature
• Low pressure and high temperature

Which of the following is NOT a part of kinetic molecular theory?

• Gases do not have mass

• Gases do not have volume

• Gases have elastic collisions

• Gases move in constant, random, straight lines

Tags

NGSS.HS-PS2-1

What is the most ideal gas?

• Helium

• Hydrogen

• Oxygen

• Water

What is the mathematical relationship between pressure and volume?

• Inverse

• Direct

• No relationship

• Variable

What is the mathematical relationship between pressure and temperature?

• Inverse

• Direct

• No relationship

• Variable