As you enter the lab, you find two bottles labeled "concentrated ammonium phosphate." In one paragraph, using your own words, des cribe the steps you could take to change one of the bottles into a diluted solution, and one of the bottles into a saturated solution.​

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?