We can also use the equation for enthalpy change for physical phase changes. consider the phase change h2o(l) → h2o(g). calculate δhrxn. use δhf values from the table above. δhrxn = -527.6 kj 44.0 kj 527.6 -44.0

How do temperature and salinity affect deepwater currents? as temperatures and salinity levels of water increase, the water rises to the surface where it creates currents as it moves to colder regions. they create changes in wind direction, moving denser water in the same direction as the wind and causing the deepwater circulation patterns found in the ocean. they equalize the forces on undersea currents caused by the coriolis effect as they replace more dense water with less dense water. they create density differences that cause dense deepwater currents to flow toward the equator where they displace less dense, warmer water above them.