What is the maximum height water can rise in xylem channels due to capillarity?

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The discussion focuses on calculating the maximum height water can rise in xylem channels due to capillarity, using the formula hmax=2δ/(density)(g)(r). Participants express concerns about the lack of information, particularly regarding the density of water, which is commonly known to be around 1,000 kg/m³. The surface tension of water (δ) is noted as 0.073 N/m, and the radius (r) is calculated from the xylem cell dimensions. The conversation emphasizes the importance of using standard values for density and surface tension in solving the problem. Ultimately, understanding these parameters is crucial for accurately determining the height of water rise in xylem channels.
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Homework Statement



Water is transported upward in a plant through xylem tissue, which consists of cells of 1 mm length and a diameter of 335 µm. The xylem cells are attached to each other to form a channel. To what maximum height can water rise in these xylem channels due to capillarity?

Homework Equations



How do you do this problem with the lack of information? How do you find density?

The Attempt at a Solution


hmax=2δ/(density)(g)(r)

δ=0.073
r=3.335X10-6 / 2
 
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The density of water? That's a pretty standard number which can be found in most physics textbooks. It can even be found on the internet. I heard that the density of water is even a standard in the metric system.
 

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