The average velocity of gas molecules in a tank in thermal ...

[ericka1]

The average velocity of gas molecules in a tank in thermal equilibrium is
  1.greater than zero.
  2.less than zero.
  3.equal to zero.
  4.impossible to determine.

Question 2

Which would have the lower average molecular kinetic energy?
 

   (i) a sample of hydrogen gas, H2, at 0C
   (ii) a sample of oxygen gas, O2, at 100 C

  1.(i)
  2.(ii)
  3.They have the same average molecular kinetic energy.
  4.It is impossible to tell.

[flexer1n1]

Answer to Question 1

3

Answer to Question 2

1

[ericka1]

Excellent

[helenmarkerine]

Thanks for the timely response, appreciate it