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Dalton - Combined - Ideal

Gas Law review

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1 Why do pressure calculations come out the same for compounds with different molar masses?

A molar mass is part of PV = nRT

B they aren't, mass of molecules matters

C lighter molecules hit side of container more often than heavier molecules, resulting in their exerting the same amount of pressure on the inside of the container

D pressure of all gases is constant and doesn't change

2 If you have 1 mol ea of 5 different compounds, how much more pressure (P) will the 5 exert together than only one?

A 2 times more PB 5 times more PC this cannot be determined with

gas lawsD 3 times more P

3 Does a molecule's mass affect the pressure it will exert on the inside of the vessel it is in?

Yes

No

4 Using PV = nRT, calculate the pressure in atm of 1 mol of CH4 in a vessel of 30L, at a temp. of 100 deg C.(R = 0.0821). Round to 3 sig. figs

Which gas law will be used for this problem?

5 Answer?

A Idea Gas LawB Combined Gas Law

Which gas law will be used for this problem?

6 Answer?

A Idea Gas LawB Combined Gas Law

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Which gas law will be used for this problem?

7 Answer?

A Idea Gas LawB Combined Gas Law

8 Answer?

Which gas law will be used for this problem?

A Idea Gas LawB Combined Gas Law

Answers:

1. A2. B3. NO4. 1.02atm5. A6. B7. A8. B