Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 k to 10 bar, 600 k. consider air as an ideal gas with variable specific heats. determine: a. entropy produced during the process [kj/kg k] b. minimum possible work [kj/kg] required for adiabatic compression between the given initial state and final pressure (clearly justify your result, that it is the minimum possible)

The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

A250 g sample of water with an initial temperatureof 98.8 closes 6500 joules of heat. what is the finaltemperature of the water?