AP Chemistry Unit 5

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

• Flask 1 contain the most molecules
• Flask 2 contain the most molecules
• Flask 3 contain the most molecules
• Flask 4 contain the most molecules

If a gas has the same temperature throughout, which gas molecule has the highest average velocity?

• O₂

• H₂O

• H₂

• Xe

The weaker the intermolecular forces of a substance the _____________ the boiling point

• higher

• lower

According to the reference table, what is the boiling point of ethanoic acid at 80 kPa?

• 28 ^oC

• 100^oC

• 111^oC

• 125^oC

This carbon atom went through ....

• sp hybridization

• sp² hybridization

• sp³ hybridization

• dsp³ hybridization

Molecule CO₂

• undergoes sp² hybridisation

• has 2 σ bond and 2 π bond

• undergoes sp³d hybridisation

• is trigonal planar molecule

Which equation represents Dalton's Law?

• E = mc²

• PV = nRT

• P1 / T1 = P2 / T2

• P_total = P1 + P2 + P3

Fluorine has an atomic number of 9. What can you conclude about an atom of fluorine from this fact?

• it has 9 protons

• it weighs 9 grams

• it has 9 electron shells

• it has a boiling point of 9 degree celsius

Tags

NGSS.HS-PS1-1

Which liquid has the highest vapor pressure at 75^oC?

• ethanoic acid

• ethanol

• propanone

• water

Tags

NGSS.HS-PS3-2