Question

Which of the following statements are true? Check all that apply. 

• All the gas molecules in a sample cannot have the same kinetic energy. 

• The average speed of gas molecules decreases with decreasing temperature. 

• There are gas molecules that move slower than the average. 

• The kinetic energy of a molecule cannot determine its speed. 

• The average kinetic energy of gas molecules decreases with decreasing temperature. 

Answer 1

The correct options are-

• All molecules of the gas molecules in sample do not have same Kinetic energy.
• The average speed of the gas molecules decrease with decreasing in temperature. because as the temperature increases movement of particles increase.
• There are molecules which move slower than the average.
• The average kinetic energy of the gas molecules Decreases on decreasing temperature. because both are directly proportional.

Answer 2

correct options are:

1,2,3,5