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AP chem gases



Gas (A) Methane, (B) Ethane, (C) Propane, (D) Butane

1/1/2014 | Qing from Hayward, CA

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Kirill Z. | Physics, math tutor with great knowledge and teaching skillsPhysics, math tutor with great knowledge...
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4. Average kinetic energy depends only on temperature. So answer is E.
 
5. PV=m/M*RT--ideal gas law. m=d*V, where d is density. So PM=dRT. Product of molar mass M and pressure is greatest for container B, since 4*30=120>2*58=116. Hence answer is B.
 
6. Butane will condense the first, since its molecules move with slowest speed. Answer is D.
1/3/2014 | Kirill Z.

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