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At 1 atm and 298 K, pentane is a liquid. What is the phase change of pentane at this condition?

A. Boiling
B. Melting
C. Sublimation
D. Condensation

1 Answer

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Final answer:

Pentane undergoes a phase change of boiling at 1 atm and 298 K.

Step-by-step explanation:

The phase change of pentane at 1 atm and 298 K is boiling, which refers to the process of a liquid becoming a gas. At this condition, pentane has enough energy to overcome the intermolecular forces and transition from a liquid to a gas state. Boiling occurs when the vapor pressure of the liquid is equal to the external pressure, which is 1 atm in this case.

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