A certain brand of freezer is advertised to use 580 kW⋅h of energy per year. A....
A certain brand of freezer is advertised to use 580 kW⋅h of energy per year.
A. Assuming the freezer operates for 4 hours each day, how much power does it require while operating? Express your answer (in W) using two significant figures.
B. If the freezer keeps its interior at a temperature of -4.0 ∘C in a 20.0 ∘C room, what is its theoretical maximum performance coefficient?
C. What is the theoretical maximum amount of ice (in kg) this freezer could make in an hour, starting with water at 20.0 ∘C?
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A certain brand of freezer is advertised to use 580 kW⋅h of
energy per year.
A....
A certain brand of freezer is advertised to use 880 kW⋅h of energy per year. P=400...
A certain brand of freezer is advertised to use 880 kW⋅h of energy per year. P=400 W 1)If the freezer keeps its interior at a temperature of -4.0 ∘C in a 20.0 ∘C room, what is its theoretical maximum performance coefficient? 2)What is the theoretical maximum amount of ice this freezer could make in an hour, starting with water at 20.0 ∘C?
(a) A freezer maintains an interior temperature inside of −20.0°C and has a coefficient of performance...
(a) A freezer maintains an interior temperature inside of −20.0°C and has a coefficient of performance of 3.00. The freezer sits in a room with a temperature of 15.0°C. The freezer is able to completely convert 36.0 g of liquid water at 15.0°C to ice at −20.0°C in one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g · °C), the specific heat of ice is 2.090 J/(g · °C),...
A freezer has a coefficient of performance of 6.30. It is advertised as using 466 kWh/yr....
A freezer has a coefficient of performance of 6.30. It is
advertised as using 466 kWh/yr. Note: One kilowatt-hour
(kWh) is an amount of energy equal to running a 1-kW appliance for
one hour.
(a) On average, how much energy does it use in a single
day?
J
(b) On average, how much energy does it remove from the
refrigerator in a single day?
J
(c) What maximum mass of water at 22.8°C could the freezer freeze
in a single...
(a) A freezer maintains an interior temperature inside of -22.0°C and has a coefficient of performance of 3.00. The fre...
(a) A freezer maintains an interior temperature inside of -22.0°C and has a coefficient of performance of 3.00. The freezer sits a room with a temperature of 25.0°C. The freezer is able to etely canvert 090 J/(9 °C), and the latent heat of & one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g °C), liquid water at 25.0-tolce specific he ice is of water is 33 J/g.) W (b)...
A freezer maintains an interior temperature inside of −24.0°C and has a coefficient of performance of...
A freezer maintains an interior temperature inside of −24.0°C and has a coefficient of performance of 3.00. The freezer sits in a room with a temperature of 19.0°C. The freezer is able to completely convert 26.0 g of liquid water at 19.0°C to ice at −24.0°C in one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g · °C), the specific heat of ice is 2.090 J/(g · °C), and...
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...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
I have this case study to solve. i want to ask which type of case study...
I have this case study to solve. i want to ask which
type of case study in this like problem, evaluation or decision? if
its decision then what are the criterias and all?
Stardust Petroleum Sendirian Berhad: how to inculcate the pro-active safety culture? Farzana Quoquab, Nomahaza Mahadi, Taram Satiraksa Wan Abdullah and Jihad Mohammad Coming together is a beginning; keeping together is progress; working together is success. - Henry Ford The beginning Stardust was established in 2013 as a...
A freezer has a coefficient of performance of 6.30. It is
advertised as using 466 kWh/yr. Note: One kilowatt-hour
(kWh) is an amount of energy equal to running a 1-kW appliance for
one hour.
(a) On average, how much energy does it use in a single
day?
J
(b) On average, how much energy does it remove from the
refrigerator in a single day?
J
(c) What maximum mass of water at 22.8°C could the freezer freeze
in a single...
(a) A freezer maintains an interior temperature inside of -22.0°C and has a coefficient of performance of 3.00. The freezer sits a room with a temperature of 25.0°C. The freezer is able to etely canvert 090 J/(9 °C), and the latent heat of & one minute. What input power (in watts) does the freezer require? (The specific heat of liquid water is 4.186 J/(g °C), liquid water at 25.0-tolce specific he ice is of water is 33 J/g.) W (b)...
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...
Question 1 1 pts What is the kinetic energy of a man who weighs 980N who is riding in a car traveling 40 km per hour? Express your answer in Joules, but don't type the unit in the answer box. Round to the nearest whole number. (Careful with the units) 1 pts Astudent slides her 80.0-kg desk across the level floor of her dormitory room a distance 4.00 m at constant speed. If the coefficient of kinetic friction between the...
I have this case study to solve. i want to ask which
type of case study in this like problem, evaluation or decision? if
its decision then what are the criterias and all?
Stardust Petroleum Sendirian Berhad: how to inculcate the pro-active safety culture? Farzana Quoquab, Nomahaza Mahadi, Taram Satiraksa Wan Abdullah and Jihad Mohammad Coming together is a beginning; keeping together is progress; working together is success. - Henry Ford The beginning Stardust was established in 2013 as a...
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