Decide which of the following statements are true and which are false. True Fals

Question

Decide which of the following statements are true and which are false.

True False  Real gas molecules behave most ideally at low temperature and high pressure.

True False  At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy.

True False  At constant temperature, the lighter the gas molecules, the smaller the average velocity.

True False  In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a lower temperature than the H2(g) sample.

True False  Ideal gas molecules have small volumes and exert weak attractive forces on one another.

True False  As temperature increases, the average kinetic energy of a sample of gas molecules increases.

Explanation / Answer

False  Real gas molecules behave most ideally at low temperature and high pressure.

Real gas molecules behave ideal at low pressure and high temperature.

False  At constant temperature, the lighter the gas molecules, the smaller the average kinetic energy.

                  KE is directly proportional to temperature.

False  At constant temperature, the lighter the gas molecules, the smaller the average velocity.

KE is directly proportional to temperature.

False  In order for two separate 1.0 L samples of O2(g) and H2(g) to have the same average velocity, the O2(g) sample must be at a lower temperature than the H2(g) sample.

Flase Ideal gas molecules have small volumes and exert weak attractive forces on one another.

True   As temperature increases, the average kinetic energy of a sample of gas molecules increases.

     KE is directly proportional to temperature

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