Ideal Gases And Kinetic Theory

Question 1

What is the ideal gas law equation?

Answer 1

PV = nRT

Question 2

True or False: The ideal gas law applies perfectly to all gases under all conditions.

Answer 2

False

Question 3

Fill in the blank: In the ideal gas law, ‘R’ represents the __________.

Answer 3

universal gas constant

Question 4

What does ‘P’ stand for in the ideal gas law?

Answer 4

Pressure

Question 5

Multiple Choice: Which of the following is NOT a postulate of the kinetic molecular theory? A) Gas particles are in constant random motion. B) Gas particles attract each other. C) Gas particles have negligible volume. D) Collisions between gas particles are perfectly elastic.

Answer 5

B) Gas particles attract each other.

Question 6

Short Answer: What happens to the pressure of a gas if the volume is decreased while the temperature remains constant?

Answer 6

The pressure increases (Boyle’s Law).

Question 7

Fill in the blank: The average kinetic energy of gas molecules is given by the equation __________.

Answer 7

KE = (3/2)kT

Question 8

What happens to the volume of a gas if its temperature is increased and pressure is held constant?

Answer 8

The volume increases (Charles’s Law).

Question 9

True or False: The ideal gas law can be used to determine the number of moles of a gas if pressure, volume, and temperature are known.

Answer 9

True

Question 10

What is the value of the universal gas constant R ?

Answer 10

8.31J/mol/K

Question 11

Which equation should be used when determining the number of molecules in a gas?

Answer 11

pV=NkT

Question 12

What is the value of Boltzmann’s constant k?

Answer 12

3.18×10^-23 J/K

Question 13

What is the value of Avagradro’s constant?

Answer 13

6.02×10²³

Question 14

Which distribution shows the variation of speeds of gas particles in kinetic theory?

Answer 14

Maxwell-Boltzmann distribution