Pentane, C₅H₁₂, Boils at 35°C

question 23

Multiple Choice

Pentane, C₅H₁₂, boils at 35°C. Which of the following is true about kinetic energy, E_k, and potential energy, E_p, when liquid pentane at 35°C is compared with pentane vapor at 35°C?

• A)E _k( g)< E _k( l); E _p( g)≈ E _p( l)
• B)E _k( g)> E _k( l); E _p( g)≈ E _p( l)
• C)E _p( g)< E _p( l); E _k( g)≈ E _k( l)
• D)E _p( g)> E _p( l); E _k( g)≈ E _k( l)
• E)E _p( g)≈ E _p( l); E _k( g)≈ E _k( l)

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