Gas Laws Quiz

What is Standard Temperature and Pressure (STP)?

• 100 °C and 760 atm

• 0 K and 1 torr

• 0 °C and 1 atm

• 373 K and 760 torr

Convert 200 K to °C

• 173 °C

• 473 °C

• -73 °C

• 373 °C

"Absolute zero" is equal to:

• 273 °C

• 0 °C

• 0 K

• 0 °F

On the Kelvin scale, a temperature of 25 degrees Celsius has a value of:

• 298 kelvin

• -251 kelvin

• 259 kelvin

• 0 kelvin

How are real gases different from ideal gases?

• Real gases have volume

• Real gases have attractions between particles

• Both a and b

• Neither a nor b

A small sample of helium gas occupies 6.00 mL at a temperature of 250 K. At constant pressure, what temperature, expressed in Celsius, does the volume expand to 9.00 mL?

• 102 °C

• 785 °C

• -268 °C

• -106 °C

At standard pressure, a sample of nitrogen occupies 700 mL. At constant temperature, what volume does the gas occupy when the pressure increases to 1400 torr?

• 380 mL

• 1520 mL

• 1289 mL

• 350 mL

At constant volume, a sample of gas has a pressure of 1.0 atm at 25 °C. At what temperature will the gas pressure reach at 2.00 atm?

• 149 K

• 149 °C

• 596 K

• 596 °C

An oxygen filled balloon has a volume of 4.00 L at 275 K and 800 mm Hg. What volume does the gas occupy at 550 K and 400 mm Hg?

• 16 L

• 8 L

• 32 L

• 1 L

Under which conditions will real gases NOT act like ideal gases?

• low temperatures and high pressures

• high temperatures and low pressures