Gases Introduction

What is true of molecules of gas that are exposed to heat in a fixed volume container?

• They move faster and they cause the pressure to increase

• They move slower and pressure will decrease

• The volume increases and pressure increases

• The volume decreases and the pressure decreases.

Tags

NGSS.HS-PS3-4

A mole of a substance is equal to how many particles?

• 6 x (10 to the 23 power)

• 22.4 liters of gas

• equal to a dozen

• 6 Kelvins

What is the value of STP?

• 0 K and 1 atmosphere

• 0 C and 1 atmosphere

• 32 F and 1 atmosphere

• 100 C and 1 atmosphere

what volume does one mole of a gas occupy at STP?

• 22.4 Liters

• 22.4 gallons

• 2.4 Liters

• 24 Liters

what is the ideal gas law equation?

• P1V1=P2V2

• PV=nRT

• Z=P + N

• R=0.0821 L Atm (mole K)-1

What is zero degrees Celsius converted to Kelvin?

• 100

• 273

• 373

• 212

What is the mass of one mole of carbon dioxide Gas in grams?

• 44

• 42

• 32

• 34

Which of the following on the periodic table is not a noble gas?

• Nitrogen

• Xenon

• Krypton

• Neon

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

• increases
• decreases
• stays the same

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

• increases
• decreases
• stays the same