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Fossil fuel power plants operate by using the energy from burning fuel such as coal to boil steam. A coal power plant releases approximately 0.441 kg of CO2 to the atmosphere for every MJ of electricity generated. Internal combustion engines burn gasoline (or diesel) to generate shaft power to drive automobiles. Typically, about 15% of the heat from combustion is lost and about 20% of the remaining energy is converted to shaft power.
Gasoline releases approximately 47 MJ for every kg burned, and is composed of 89% carbon by mass. Compute the mass of CO2 produced for every MJ of shaft power produced. Compare the CO2 emissions for power plants and internal combustion engines. If the car can travel 25 miles on a gallon of gas, compute the mass of CO2 expelled when travelling 100 miles.
A plug-in electric vehicle uses electricity to charge an onboard battery which converts the stored energy to shaft power to drive the vehicle. Battery energy is converted to shaft power at efficiencies around 80%. Transmission losses of 6% occur when transmitting electricity from the power plant to the charging station. Assuming the electric vehicle requires the same shaft energy as the internal combustion automobile to travel 100 miles, calculate the mass of CO2 expelled during electricity generation for the 100 mile trip. Compare the CO2 emissions from internal combustion engines and electric vehicles. In order to perform the calculations, find the percentage of electricity generated from fossil fuels in Georgia and assume all fossil plants exhibit similar performance as the coal plant described here. As a comparison find the fractions of energy generated by nuclear, fossil, and renewable sources for Georgia, Washington state, and the national average.
Silver crystallizes in face centered cubic unit cell. a silver atom is at edge of each lattice point the length of the edge of the unit cell is 0.4086 nm. What is the atomic radius of silver
what is the change in enthalpy for 2.854 moles of the liquid?
?Hf0 for the formation of rust (Fe2O3) is -826 kJ/mol. How much energy is involved in the formation of 5 grams of rust.
predict the products formed (if any) and write the balanced molecular equation, complete ionic equation and net ionic equation.
a bacterial culture isolated from sewage produced 35.0 ml of methane ch4 at 31degc and 753 mmhg. what is the volume of
A copper cathode with an initial mass of 10.77 g is placed in a solution of CuSO4. After current has passed through the electrode for 15.0 minutes the cathode has a mass of 12.89 grams. Determine the amount charge (in Coulombs) that has passed thr..
Show the correct expression for the equilibrium in the reaction of benzoic acid with methanol to form methyl benzoate and water.
Silver metal crystallizes in a face centered cubic unit cell. The edge of the unit cell has a length of d = 407pm. What is the radius in picometers of a silver atom
Which of these is likely to be the best conductor of electricity?
The solid PbSO4 is collected, dried and determined to have a mass of 1.01g . Find out the limiting reactant, the theoretical yield and the percent yield
A possible side product of the aldol reaction of cinnamaldehyde and acetone is the self-condensation of acetone. draw the structure of the side product. explain how the experimental procedure we used is designed to minimize the formation of this s..
Problem- The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
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