Capillary Action Causes Water to Climb Up the Internal Walls

question 55

Multiple Choice

Capillary action causes water to climb up the internal walls of narrow glass tubes. Why does the water not climb so high when the glass tube is wider?

• A)The upper surface area is exposed to greater atmospheric pressure.
• B)A wider column of water weighs more.
• C)The water sticks better to the glass because of the greater surface area of contact.
• D)The greater rate of evaporation has the effect of pushing the water back downwards.

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