Homework Answers
Dit Preording to cachot equation in = THAT -Amound of heat reeds to be removed 884 ( 14 W Here We Work = 361 X 1014 J Th = 150°e, Te = 2000 -194 = 150_) ( 30121014 J) = 3057 X1014J (150-20
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The United States generates 3.1*10') of geothermal energy per day. If all of this energy is...
2. The United States generates 3.1 1014 J of geothermal energy per day, If all of...
2. The United States generates 3.1 1014 J of geothermal energy per day, If all of this energy is used to perform work, what is the minimum amount of heat that needs to be removed from a 150°C hot steam reservoir if the outside temperature of 20.0°C is to be used as a cold reservoir? 3. The internal pressure is defined as follows
A power plant taps steam superheated by geothermal energy to 421 K (the temperature of the...
A power plant taps steam superheated by geothermal energy to 421 K (the temperature of the hot reservoir) and uses the steam to do work in turning the turbine of an electric generator. The steam is then converted back into water in a condenser at 321 K (the temperature of the cold reservoir), after which the water is pumped back down into the earth where it is heated again. The output power (work per unit time) of the plant is...
Second Law of Thermodynamics Learning Goal: To understand the implications of the second law of thermodynamics...
Second Law of Thermodynamics Learning Goal: To understand the implications of the second law of thermodynamics. The second law of thermodynamics explains the direction in which the thermodynamic processes tend to go. That is, it limits the types of final states of the system that naturally evolve from a given initial state. The second law has many practical applications. For example it explains the limits of efficiency for heat engines and refrigerators. To develop a better understanding of this law,...
1.The efficiency of a Carnot engine is 27%. The engine absorbs 826 J of energy per...
1.The efficiency of a Carnot engine is 27%. The engine absorbs 826 J of energy per cycle by heat from a hot reservoir at 503 K. (a) Determine the energy expelled per cycle. _ J (b) Determine the temperature of the cold reservoir. _K 2.A sample of helium behaves as an ideal gas as energy is added by heat at constant pressure from 273 K to 343 K. If 15.0 J of work is done by the gas during this...
Energy.gov is the official website of the United States Department of Energy (located within the weekly...
Energy.gov is the official website of the United States Department of Energy (located within the weekly readings) thermostats then consider the following question: website, you can find a variety of heloful resources, indluding resources on how to conserve enery Read the infmation abou resources, including resources on how to conserve energy. Read the information about On a hot summer d air conditioning system, turn up the thermostat, or leave it set at your normal temperature? For those of you more...
Suppose it is a particularly hot summer day and you want to make some popsicles to...
Suppose it is a particularly hot summer day and you want to make some popsicles to help cool off. You fill a popsicle mold with 0.15kg of juice (suppose it is the same thermal energy as water). The juice starts out at a temperature of 30 °C and the freezer will cool it to -20 °C. a. How much heat must be removed from the popsicles in order to bring them to their final temperature. b. Draw an energy flow diagram...
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance ...
do
#5
you will need to look at #4 to understand how to do #5
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance is one ohm Using a load resistor as a heating element to extract maximal power from the battery to heat up a container of 1 cubic meter of water (to be used as a thermal reservoir for a steam engine). (a) How long (i.e., how many seconds) does it...
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance ...
please do 4, and 5
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance is one ohm. Using a load resistor as a heating element to extract maximal power from the battery to heat up a container of 1 cubic meter of water (to be used as a thermal reservoir for a steam engine). (a) How long (i.e., how many seconds) does it take to bring that water from 32 degrees Celsius to...
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...
A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's...
A nuclear power plant generates 3000 MW of heat energy from nuclear reactions in the reactor's core. This energy is used to boil water and produce high-pressure steam at 320 ∘C. The steam spins a turbine, which produces 1000 MW of electric power, then the steam is condensed and the water is cooled to 25∘C before starting the cycle again. Part A: What is the maximum possible thermal efficiency of the power plant? Part B: Cooling water from a river...
2. The United States generates 3.1 1014 J of geothermal energy per day, If all of this energy is used to perform work, what is the minimum amount of heat that needs to be removed from a 150°C hot steam reservoir if the outside temperature of 20.0°C is to be used as a cold reservoir? 3. The internal pressure is defined as follows
Energy.gov is the official website of the United States Department of Energy (located within the weekly readings) thermostats then consider the following question: website, you can find a variety of heloful resources, indluding resources on how to conserve enery Read the infmation abou resources, including resources on how to conserve energy. Read the information about On a hot summer d air conditioning system, turn up the thermostat, or leave it set at your normal temperature? For those of you more...
do
#5
you will need to look at #4 to understand how to do #5
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance is one ohm Using a load resistor as a heating element to extract maximal power from the battery to heat up a container of 1 cubic meter of water (to be used as a thermal reservoir for a steam engine). (a) How long (i.e., how many seconds) does it...
please do 4, and 5
4. The open-circuit voltage of a battery is 12 volts and it's internal (i.e., source) resistance is one ohm. Using a load resistor as a heating element to extract maximal power from the battery to heat up a container of 1 cubic meter of water (to be used as a thermal reservoir for a steam engine). (a) How long (i.e., how many seconds) does it take to bring that water from 32 degrees Celsius to...
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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