The increasing vapor pressure caused by heating a liquid is due to___________?
Correct answer: C. increasing kinetic energy of molecules
- A. increase inter-molecular interactions
- B. increasing potential energy of molecules
- C. increasing kinetic energy of molecules
- D. decreasing surface tension
Explanation
Heating gives liquid molecules greater kinetic energy, allowing more of them to escape from the surface into the vapour phase. This increases the equilibrium vapour pressure.
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