properties of water
- Created by: N1ntendo-Sw1tch
- Created on: 28-02-23 11:30
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- Water
- water is a polar molecule
- polar = unequal distribution of charge
- hydrogens are positive whilst oxygens are negative
- Cohesive
- Because its polar
- = water molecules interact with one another
- Significance = water can move up tissues like the xylem in plants
- High surface tension
- because its polarity
- = molecules at the surface interact more tightly together
- Significance = organisms can survive at the top of the water (pond skater)
- transparency
- Significance = plants below surface can carry out photosynthesi-s
- A solvent
- = water is a powerful solvent because of its polarity
- Significance = can be used to transport things in blood + xylem
- High specific heat capacity
- = water stays a relatively similar temp due to its high heat capacity
- Significance = temp of water in cells and aquatic environments will stay relatively similar so enzymes can still function at optimum
- high latent heat
- water molecules absorb heat before they evaporate ( to break hydrogen bonds)
- Significance = transfer hear energy during sweating
- Density
- = becomes less dense as it freezes so moves to surface
- Significance = insulates the water beneath, so that organisms can still function at their optimum temp
- water is a polar molecule
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