Pentane, C₅H₁₂, Boils at 35°C

question 99

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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