Since their discovery in 1985, fullerenes have been the subject of much researcher, with functionalized c60 being explored for making better solar cells. kolesov et al. reported the standard enthalpy of combustion and formation of crystalline c60 based on calorimetric measurements (v. p. kolesov et al., j. chem. thermodynamics 28, 1121( in one of their runs, they found the standard specific internal energy of combustion to be -36.0334 kj/g at 298.15 k. compute dh0combustion and dh0f per mol of c60 at this same temperature

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?

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

What will a positive and a negative charge do if they are separated from each other?