Convection is the transfer of heat through the rising and sinking of a fluid. A student is constructing an explanation for how convection currents form in the mantle. which statement would be most useful for the student to include in the explanation? A. The mantle contains gases mixed with rock.

B. earths temperature increase with depth

C. temperatures are about the same throughout the mantle

D. The mantle is the thickest of earths four main layers

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible? a. attractive forces between gas particles are negligible because the particles of an ideal gas are moving so quickly. b. collisions between gas particles are elastic; there is no net gain or loss of kinetic energy. c. gases consist of a large number of small particles, with a lot of space between the particles. d. gas particles are in constant, random motion, and higher kinetic energy means faster movement.

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Which states of matter have particles that move independently of one another with very little attraction?