4. A rock, warmed by the Sun, is placed in a pool of cool water. The rock transfers 9.95 J of heat to the water. Assume that the rock and the water are systems isolated from the outside world. Use conservation of energy to relate the magnitudes of the energy changes that occur in the rock and in the water. (1 point)

How does a large body of water, such as the ocean, influence climate?

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Which property of water causes water drops to bead on a freshly waxed car?