KMT & Real/Ideal Gasses

Which is NOT true about the Kinetic Molecular Theory?

• Gas molecules have forces of attraction for each other

• Collisions between gas molecules lead to a transfer of energy that is conserved

• Gas molecules have a negligible volume compared to the volume they occupy

• Gas molecules move in a random, straight-line motion

Tags

NGSS.HS-PS3-2

Gases found in the environment are most likely to exhibit properties similar to that of ideal gases under conditions of:

• High temperatures and high pressures

• Low temperatures and low pressures

• High temperatures and low pressures

• Low temperatures and high pressures

According to kinetic theory of gases, the collisions between molecules of a gas:

• occur in a zig-zag path

• occur in a straight line

• change velocity and energy

• result in settling down of molecules

Tags

NGSS.HS-PS2-1

Which of the following statement(s) is/are true.

• The molecules in a gas take up a negligible amount of space in relation to the container they occupy.

• Collisions are elastaic, so energy is gained or lost when molecules collide.

• The molecules are in constant, linear motion.

• All are true

Tags

NGSS.HS-PS2-1

Which of the following are ways in which a REAL gas deviates from an IDEAL gas?

(CHECK ALL THAT APPLY)

• Real Gases have weak intermolecular forces

• Real Gases are not compressible.

• Real Gases do occupy some volume.

• Real Gases do not travel in random straight line motion.

Which of the following would behave most like an Ideal Gas?

• Ar (g)

• Ne (g)

• H₂ (g)

• O₂ (g)

Decide if each of the following is a characteristic of a REAL gas, and IDEAL gas, or BOTH.

Groups:

(a) IDEAL GAS

,

(b) BOTH

,

(c) REAL GAS

• Random straight line motion of particles

• Elastic collisions

• No attraction between particles.

• Occupy some volume.

• Take Shape & Volume of container

• Weak IMFs

• No energy lost in collisions

• Negligible (no) volume.