water is rad Flashcards
U2
since water is polar it has what 3 qualities
- high heat capacity
- strong solvent
- ability to have different densities
water is a solvent because of different _____ within itself
charges
increase in temp = ________ gas solubility because…
decreases gas solubility because at high temp = high energy = difficult to keep gases compressed in one place
increase in temp = ________ solid solubility because…
increases solid solubility becase at high temp = high energy = easy to break solid apart
T/F: more CO2 in air than water
no est vrai: there’s more CO2 in water because it can hold it better than air
what is the water heat of vaporization
597 K
why is it cool that water has a high heat of vaporization
water is a liquid across a large range of temperatures = exists as a liquid across a wide range of ecosystems
water has a _____ specific heat capacity which means…
HIGH
it takes a lot of heat/energy to raise the temperature (temp change is very slowly)
aquatic enviornments are ____
stable
water has ____ viscosity and why
HIGH
because hydrogen bonds are very strong = resists flow (doesn’t want to break apart)
water viscocity is lower at ____ temperatures and why
HIGH
high temp = lots of energy to break apart the strong H bonds = less resistant to flow
bouyancy is highest at what temperature
4ºC
hydrogen bonds make water very cohesive which means that it ______ to itself
creates ________ for bugs to walk on
it sticks to itself
creates surface tension for bugs to walk on
two types of water movement
laminar and turbulent
where water changes from laminar to turbulent flow = ________
boundary layer
