A gas cylinder contains 1.0 mol of helium at a temperature of 20C. A second iden

Question

A gas cylinder contains 1.0 mol of helium at a temperature of 20C. A second identical cylinder contains 1.0 mol of neon at 20C. The helium atoms are moving with a higher average speed, but the gas pressure in the two containers is the same. Explain how this is possible.

fill the blank with [smaller, slower, 5 , faster, greater, squrt(5)]

[1] The helium atom are 5 time lighter than the neon atoms, they are traveling, on average, squrt(5) times -------- than the neon atoms.
[2] since the momentum depends on the velocity and mass, the momentum of the helium atoms is -------- times -------- than the momentum of the neon atoms.
[3] Finally, since the helium atoms travel faster, they collide more often, again by the factor of ---------.
[4] summarizing the facts we see that the helium atoms collide with the walls ------- times more often, but each collision is --------- times weaker. consequently, the pressures exerted by the two different gases are the same.

My answer are

[1] smaller

[2] sqrt(5), smaller

[3] sqrt (5)

[4] sqrt (5), sqrt (5)

but it said ''You filled in 1 of 6 blanks incorrectly.'', I am not sure which one. Please help!!

Explanation / Answer

(1).Faster

(2).sqrt(5), smaller

(3).(5)

(4).5 times,sqrt(5)

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.