- #1

- 469

- 0

a.NH3

b.O2

__c.H2S__

d.CH4

Is it H2S? Given the formula sqrt(3RT/M), is it not true that the gas with the greatest molar mass will have the lowest speed?

NH3 = 17.03 g/mol

O2 = 32 g/mol

__H2S = 34.08 g/mol__

CH4 = 16.04 g/mol

Thanks.

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- Thread starter Soaring Crane
- Start date

- #1

- 469

- 0

a.NH3

b.O2

d.CH4

Is it H2S? Given the formula sqrt(3RT/M), is it not true that the gas with the greatest molar mass will have the lowest speed?

NH3 = 17.03 g/mol

O2 = 32 g/mol

CH4 = 16.04 g/mol

Thanks.

- #2

lightgrav

Homework Helper

- 1,248

- 30

KE = ½ m v^2 = 3/2 k_B T

If you haven't seen it yet, k_B = k_Boltzmann = R/N_Avagadro

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