webassign.n Home I Chegg.com HWCh05 Convert Kelvin to Celsius (K to C) and C to

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webassign.n Home I Chegg.com HWCh05 Convert Kelvin to Celsius (K to C) and C to K (degrees Celsius to Kelvin) Onli Show sidebar 13. -3 points My Notes Ask Your Teacher The graph below shows the distribution of molecular speeds of argon and helium at the same temperature. Molecular speed a) Does curve 1 or 2 better represent the behavior of argon? curve 1 curve 2 (b) Which curve represents the gas that effuses more slowly? curve 1 curve 2 c) which curve more closely represents the behavior of fluorine gas? curve 1 curve 2 Explain. This answer has not been graded yet. 14. -3 points My Notes Ask Your Teacher A sample of an unknown gas effuses in 10.8 min. An equal volume of H 2 in the same apparatus at the same temperature and pressure effuses in 2.51 min. What is the molar mass of the unknown

Explanation / Answer

a).

If we look at the graph then we observe that curve 1st has small molecular velocity than curve 2nd

Curve second is at higher temperature since molecular speed is directly proportional to the temperature. Curve 1st has lower molecular speed. Ar is having more molar mass so curve 1st fits for Argon

Answer : curve 1

b)

We know Temperature is directly proportional to the molecular velocity and curve second has more velocity and so it diffuses fastly.

Answer : curve 2

c) He behaves more closely to Fe

Curve 2

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