Gas Laws Quiz

At STP, which property of a molecular substance is determined by the arrangement of its molecules?

• particle arrangement

• molar mass

• chemical state

• percent composition

Which substance has the weakest intermolecular forces?

• Cl₂(g)

• AlCl3(s)

Tags

NGSS.HS-PS1-3

Which sample of CO2 has the least entropy?

• CC14(1)

• NaCl(aq)

• CO₂(aq)

• CO2(g)

• CO₂ (s)

Based on Table H, which compound has the strongest intermolecular forces at 60 kPa?

• ethanoic acid

• propanone

Tags

NGSS.HS-PS1-3

What is the vapor pressure of propanone at 50°C?

• 101 kPa

• 37 kPa

• 50 kPa

• 83 kPa

Tags

NGSS.HS-PS1-5

Which compound has the lowest vapor pressure at 50°C?

• ethanoic acid

• propanone

Which liquid has the highest vapor pressure at 85°C?

• ethanoic acid

• ethanol

• propanone

• water

Tags

NGSS.HS-PS1-3

Using your knowledge of chemistry and the information in Reference Table H, which statement concerning propanone and water at 50°℃ is true?

• Propanone has a lower vapor pressure and stronger intermolecular forces than water.

• Propanone has a higher vapor pressure and stronger intermolecular forces than water.

• Propanone has a higher vapor pressure and weaker intermolecular forces than water.

• Propanone has a lower vapor pressure and weaker intermolecular forces than water.

Tags

NGSS.HS-PS1-3

Under which conditions of pressure and temperature is a real gas most like an ideal gas?

• low pressure and low temperature

• low pressure and high temperature

• high pressure and low temperature

• high pressure and high temperature

At which temperature and pressure will a sample of neon gas behave most like an ideal gas?

• 300. K and 2.0 atm

• 300. K and 4.0 atm

• 500. K and 2.0 atm

• 500. K and 4.0 atm