An office heater puts out 2030 Btus of energy in the form of heat per hour....
An office heater puts out 2030 Btus of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous operation)?
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An office heater puts out 2030 Btus of energy in the form of
heat per hour....
An office heater puts out 2010 Btus (British thermal units) of energy in the form of...
An office heater puts out 2010 Btus (British thermal units) of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater assuming continuous operation? ____________=MJ/year
A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity....
A typical frostless refrigerator uses 655 kWh of energy per year in the form of electricity. Suppose that all of this electricity is generated at a power plant that burns coal containing 3.3% sulfur by mass and that all of the sulfur is emitted as SO2 when the coal is burned.If all of the SO2 goes on to react with rainwater to form H2SO4, what mass of H2SO4 is produced by the annual operation of the refrigerator? (Hint: Assume that...
Case problem 5 : Duke Energy Coal Allocation*
Duke Energy manufactures and distributes electricity to customers in the United States and Latin America. Duke recently purchased Cinergy Corporation, which has generating facilities and energy customers in Indiana, Kentucky, and Ohio. For these customers Cin- ergy has been spending $725 to $750 million each year for the fuel needed to operate its coal-fired and gas-fired power plants; 92% to 95% of the fuel used is coal. In this region, Duke Energy uses 10 coal-burning generating plants: five located inland...
Case problem 5 : Duke Energy Coal Allocation
Duke Energy manufactures and distributes electricity to customers in the United States and Latin America. Duke recently purchased Cinergy Corporation, which has generating facilities and energy customers in Indiana, Kentucky, and Ohio. For these customers Cin- ergy has been spending $725 to $750 million each year for the fuel needed to operate its coal-fired and gas-fired power plants; 92% to 95% of the fuel used is coal. In this region, Duke Energy uses 10 coal-burning generating plants: five located inland...
o) thes at2ciency of 0.22 and delivers 180 J of work per cycle (c) If the...
o) thes at2ciency of 0.22 and delivers 180 J of work per cycle (c) If the energy content gasoline 010 A four-cylinder gasoline engine has acper s (a) thework done per second, and (b) the total heat input per second from icieney ord 1500 pm) has an et nt of gasoline is 130 MJ per gallon, how long is 130 MJ per gallon, how long does one gallon last? 011. rool ch initial sed of 4.0 ms' slides along a...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305J of heat is added to 41.7 g of this metal, initially at 20.0 ∘C? 2.) When 1723 J of heat energy is added to 42.3 g of hexane, C6H14, the temperature increases by 18.0 ∘C. Calculate the molar heat capacity of C6H14 3.) Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are...
In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is T(in) = 20 degrees celcius and the temperature outside is T(out) = 0 degrees celcius
In this problem you will estimate the heat lost by a typical house, assuming that the temperature inside is T(in) = 20 degrees celcius and the temperature outside is T(out) = 0 degrees celcius. The walls have fiberglass insulation, which dominates the heat conduction properties of the wall So we can consider the wall to have a thermal conductivity of k(wall) = 0.048 W/m/K . We will take the thickness of the walls and ceiling to be L(wall) = 12...
Additional info: Meal = 1720 Kilocalories Mass of myself = 50 kg The Joule () is...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assum...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assuming that this demand will be covered with diesel boiler of average yield 0.8 (for diesel 1.12 tep/ton gas oil), they are: a) 30.1 tep/year, 26.9 ton/year b) 37.6 tep/year, 33.6 ton/year c)41.2 tep/year, 36.8 ton /year 1. 2. A hydraulic pump...
Blues Traveler Company sells electric razors. The company’s home office is in Princeton, New Jers...
Blues Traveler Company sells electric razors. The company’s home office is in Princeton, New Jersey. The company was founded in 2005 when John Popper invested $300,000 for 30,000 shares and Chan Kinchla invested $200,000 for 20,000 shares of common stock. The only other financing activities relate to a $500,000 bank loan from 1st National Bank that accrues interest at six percent per year payable on January 1 each year that has an unpaid balance of $400,000. The loan is due...
o) thes at2ciency of 0.22 and delivers 180 J of work per cycle (c) If the energy content gasoline 010 A four-cylinder gasoline engine has acper s (a) thework done per second, and (b) the total heat input per second from icieney ord 1500 pm) has an et nt of gasoline is 130 MJ per gallon, how long is 130 MJ per gallon, how long does one gallon last? 011. rool ch initial sed of 4.0 ms' slides along a...
Additional info:
Meal = 1720 Kilocalories
Mass of myself = 50 kg
The Joule () is the SI unit of energy. (J = kg:m? S2 A calorie is another unit of energy. The definition of a calorie is the amount of heat (energy) necessary to raise the temperature of Ig of water by 1° Celsius. Ig of water occupies 1 milliliter (ml) = 1 cubic centimeter (cm) of volume. lkcal=4186J Energy comes in many forms and energy may be converted...
1. 1. The primary energy savings in tep (1 MWh -0.086 tep) and diesel, which involves the direct use of heat from a geothermal resource to cover a heat demand of 100 kW for 3,500 h / year, assuming that this demand will be covered with diesel boiler of average yield 0.8 (for diesel 1.12 tep/ton gas oil), they are: a) 30.1 tep/year, 26.9 ton/year b) 37.6 tep/year, 33.6 ton/year c)41.2 tep/year, 36.8 ton /year 1. 2. A hydraulic pump...
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