The best solar panels currently available are about 15% efficient in converting sunlight to electricity. A typical home will use about 40 kWh of electricity per day (1 kWh = 1 kilowatt hour; 1 kW = 1000 J/ s). Assuming 8.0 hours of useful sunlight per day, calculate the mini-mum solar panel surface area necessary to provide all of a typical home’s electricity. (See Exercise 100 for the energy rate supplied by the sun.)
Answer to relevant QuestionsYou have 2.4 moles of a gas contained in a 4.0-L bulb at a temperature of 32oC. This bulb is connected to a 20.0-L sealed, initially evacuated bulb via a valve. Assume the temperature remains constant. a. What should happen ... A gaseous hydrocarbon reacts completely with oxygen gas to form carbon dioxide and water vapor. Given the following data, determine ΔHof for the hydrocarbon: ΔHrxn = –2044.5 kJ/ mol ΔHof (CO2) = –393.5 kJ/ mol ΔHof ...One mole of an ideal gas is contained in a cylinder with a movable piston. The temperature is constant at 77oC. Weights are removed suddenly from the piston to give the following sequence of three pressures: a. P1 = 5.00 atm ...Calculate the change in entropy that occurs when 18.02 g of ice at 210.0oC is placed in 54.05 g of water at 100.0oC in a perfectly insulated vessel. Assume that the molar heat capacities for H2O(s) and H2O(l) are 37.5 ...For the reaction C2H2(g) + 4F2(g) → 2CF4(g) + H2(g) ΔSo is equal to -358 J/ K. Use this value and data from Appendix 4 to calculate the value of So for CF4(g).
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