Can you cool your house by leaving the refrigerator door open?
Q: When the door of a fridge is kept open for a long time, does it reduce the temperature in the room?…
A: No, opening the door of the fridge does not cool the room. A fridge is a heat pump which takes air…
Q: In a reversible adiabatic compression of an ideal gas a) The entropy of the gas is constant b) The…
A: According to first law of thermodynamics: Here, is the change in the energy, is the change in the…
Q: An insulated piston-cylinder device contains 0.05 m³ of saturated frigerant-134a at 32°C. The…
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Q: Can you cool a kitchen by leaving the refrigerator door open?
A:
Q: Under what conditions can the overall heat transfer coefficient of a heat exchanger be determined…
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Q: 46 Suppose 200 J of work is done on a system and 70.0 cal is extracted from the system as heat. In…
A: The first law of thermodynamics states that the energy suppliedQ to the system is utilized to…
Q: QUESTION 16 In an evaporator or a boiler, as a heat exchanger, the heat capacity rate: O Ch >> Cc.…
A: Heat transfer rate is equal to the product of heat capacity and the mass flow.
Q: A system gains 2990 J of heat at a constant pressure of 1.23 × 105 Pa, and its internal energy…
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Q: A system is connected to the outside environment via adiabatic walls, which of the following is…
A: We need to use the property of an adiabatic process to answer the question.
Q: Carnot refrigerator extracts heat from a freezer at -5.00°C and exhausts it at 25°C. How much work…
A: Given T1 = 25 0 C = 25+273 = 298 K T2 = 273 -5 = 268 K Heat extracted Q2 = 1 J
Q: Give an example where the temperature of a system remains constant even if heat flows into or out of…
A: Introduction: An isothermal process is a change of a system, in which the temperature remains…
Q: How much internal energy in Joule is generated when a (1.67x10^1)-g lead bullet, traveling at…
A: Mass of bullet "m " = 1.67×10^¹ g Velocity of bullet "v"= 4.9×10^² m/ s .
Q: Suppose you warm up 490 grams of water (about half a liter, or about a pint) on a stove, and while…
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Q: Assume that the internal energy of a system decreases by 300 j while 200 j of work is done by a gas.…
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Q: Is it possible to chill a room by leaving the fridge door open?
A: Reason: It is not possible to chill a room just by leaving the refrigerator(fridge) door open as it…
Q: at transfer requirements of a facility. One is smaller and eaper but requires a larger pump, while…
A: Given: There are two heat exchanger that can meet the heat transfer requirements of a facility. One…
Q: The tea in a cup of tea has a temperature of 50 degree celsius and a certain internal energy. If all…
A: mass = p*v ∆Q = ms∆T =ρVS∆T S = specific heat…
Q: You add 3181 J of heat to a system at constant pressure of 2.78 x105 Pa. While doing so, its…
A: Given: Heat, Q = 3181 J pressure, p = 2.78 X 105 Pa Internal energy, U=6300 J
Q: An old tale says: On a hot summer day you can cool the kitchen by leaving the refrigerator door…
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Q: Q25(i) Write any uses of laws of thermodynamics.
A: 1. The first law of thermodynamics defines the conservation of energy and also provides an idea of…
Q: As the friction decrease inside the pipes, the heat energy in the pipe: O Increases O Decreases O…
A: What happens to the heat energy if the friction inside the pipe decreases
Q: Consider a balloon of volume 2.0 m3 that contains 3.5 moles of helium gas at a temperature of 300 K.…
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Q: The average mpg rating for an older model of a car is 24.8 miles to the gallon and it takes 7.00x105…
A: A gallon of gasoline= 1.19 x 108J Internal energy used for 1 mile = 1.19*10824.3=4.89 x 106J Work…
Q: A box starts to slide from rest down a smooth inclined plane. as illustrated in the figure. The…
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Q: Can a room be cooled indefinitely by leaving the door of the refrigerator open? Explain
A: The answer is no, the room will not be cooled for indefinitely by leaving door of the refrigerator…
Q: Q19) When a gas expands from 4 litre to x litre at constant pressure of 2.5 atmosphere, the work…
A: Given data:- V1=4 liter V2= X liter P=2.5 atmosphere W=750 j
Q: An ideal gas is heated from 50°C to 80°C (a) at constant volume and (b) at constant pressure. For…
A: (a) The energy required for heating at constant volume : Qv=mcv∆T Here, QV is the energy required…
Q: Is it possible (A) to cool your kitchen by leaving the refrigerator door open or (B) to cool your…
A: Explanation: It is not possible to cool the kitchen by leaving the refrigerator door open because…
Q: Answer the following question in an essay form. Write the essay with at least 3 paragraphs. Can…
A: Cooling or heating occurs with in the conductor by the process of heat transfer. The heat transfer…
Q: PA b 4P, a Pa d a V, 2Va V a
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Q: Why must a room air conditioner be placed in a window rather than just set on the floor and plugged…
A: Both air conditioner and refrigerator work on the principle of reverse Carnot cycle. Heat from the…
Q: On a warm Summer day, a student turns on the fan in his room in the morning and leaves it running.…
A: His room will be warmer since the fan does not cool the air; instead, it cools you by draining sweat…
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refrigerator door open?
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