800 J of work are done BY a system in a process that decreases the thermal energy of the system by 50 J. How much heat is transferred TO the system during this process? If the system gains heat, answer with a positive number. If the system loses heat, answer with a negative number. (in J)  -750  750  -850  -50  0

Q: On a cold day, a heat pump absorbs heat from the outside air at -10°C and transfers it into a home…

A: Given  Outside temperature TL=-100 C=273-10=263K Home temperature TH=300 C=273+30=303K

Q: How much heat will occur from a system if has and internal energy that is decreased by 150 J while…

A: Given: The decrease in internal energy is U=-150 J. The work done is W=30 J.   The expression from…

Q: A system does 1.80×108 J of work while 7.50×108 J of heat transfer occurs to the environment. What…

A: Given :

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Q: An electrical power station uses 1.48  1014 J of heat input with an efficiency of 34.7%. (a) How…

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Q: Determine in which case is heat added to the system? (a) ΔU = –43 J, w = 40 J; or (b) ΔU = 31 J, w =…

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Q: The system gains 159 J of heat, while it does 15 J or work on the surroundings. After a few minutes,…

A: Given data: Heat gain by the system, Q1= 159 J Work done on the surrounding is, ∆W=15 J The heat…

Q: How much heat transfer occurs from a system, if its internal energy decreased by 50 J while it was…

A: given that,Internal energy decreased:∆U=- 50 Jwork done:∆W=120 J

Q: A heat pump is a heating system that has an efficiency of about 150 %, that is, for every joule (J)…

A: Let us first look at the statement of Second Law of Thermodynamics, the Kelvin-Planck Statement:…

Q: What is the change in internal energy of a system that takes in 4.48 x 106 J of heat, and does 4.50…

A:

Q: A heat engine exhausts 1100 J of heat in the process of doing 400 J of work. What is the heat input…

A: Given: Heat energy expelled by the engine=QC=1100 [J] Work done by the engine=W= 400 [J]

Q: A pot containing 3.80 kg of water is sitting on a hot stove, and the water is stirred violently by a…

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Q: i) A 514g granite pan of specific heat 774 J/kg.°C kept on a stove and 0.280 L water of specific…

A: A graphite pan containing water is cooled down from 86 to 25 degC

Q: a) the amount of heat transferred to the ice to melt;         b) the change of entropy for the…

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Q: A system consists of 2.0 kg of water at 75°C. 25 J of work is done on the system by stirring with a…

A: According to first law of thermodynamics, the amount of heat given to the system is equal to the sum…

Q: A system does 2.00 x 10° ) of work while 6.20 x 10 ) of heat transfer occurs to the environment.…

A: Given : Work done by the system (W) = 2 x 108 J Heat transfer to the environment (Q) = -6.2 x 108 J…

Q: A 100 kg steel support rod in a building has a length of 2.0 m at a temperature of 200C. The rod…

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Q: What is the total energy of a system if 200 J of work and 900 J of heat is added into the system?

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Q: 24. Eighty joules are added by heat to a system, while it does 20J of work. Later, 30J are added by…

A: According to first law of thermodynamics, dQ = W+dU  Where dQ is heat added or removed…

Q: - What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while…

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Q: From the diagram,      • along the path acb, 90 J of heat flows into the system and 60 J of work is…

A:

Q: Work of 1100 J is done on an ideal gas, but the internal energy increases by only 700 J. What is the…

A: Given that, Work done on the system is W = +1100 J Increase in internal energy is ∆U=+700 J

Q: A system moves from state X to Y via path las shown in figure. 100 joules of heat is absorbed by the…

A: In the the Path 1 Heat absorbed Q = 100 J Work done by the system W = 9.56 cal. = 9.56 X 4.2 J…

Q: figures 1. Four grams of water (3.000cm) becomes 4698.0 cm of steam when boiled at a constant…

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Q: You are boiling water in a pot on the stove for your tea. Being the brilliant scientist you are, you…

A: Given. The 0.1 kg of water in a pot is boiling at 100 degrees celsius. In the process of boiling the…

Q: Using data from Table, calculate the daily energy needs of a person who sleeps for 8.00 h, walks for…

A: The surface area of the person is found as,

Q: A system does 1.80×108 J of work while 7.50×108J of heat transfer occurs to the environment. What is…

A: The work done by a given system is, The amount of heat transferred from the system to the…

Q: 9.The heat exhausted to the heat sink by a gasoline heat engine of a SUV is twice the mechanical…

A:

Q: A system undergoes a two-step process. In the first step, the internal energy of the system…

A: Given: The increase in the internal energy of the system in the first step is 230 J. The work done…

Q: What is the change in internal energy of a system which does 4.50 X 105 J of work while 3.00 X 106 J…

A: From the first law of thermodynamics, ∆Q=∆U+W∆U=∆Q-W Where, ΔU be defined as the changed in internal…

Q: When one gallon of gasoline is burned in a car engine, 1.19 x 108 J of internal energy is released.…

A: given, When one gallon of gasoline is burned in a car engine, 1.19 x 108 J of internal energy is…

Q: When one gallon of gasoline is burned in a car engine,1.19x108J of internal energy is released.…

A: The amount of heat   Q=-1.0×108 J Change in internal energy is  ΔU=-1.19×108 J There is a loss of…

Q: What is the change in the internal energy of the system if 400 J of heat is added to the system and…

A: Heat added to system = 400 Joules  Work done by the system = 2300 Joules

Q: On a cold day, a heat pump absorbs heat from the outside air at -10°C and transfers it into a home…

A: Given value--- cold temperatures = - 10 degree C. Hot temperatures = 30 degree C. We have to…

Q: A system consists of 3.0 kg of water at 80°C. 30 J of work is done on the system by stirring with a…

A:

Q: Two distinct systems have the same amount of stored internal energy. Five hundred joules are added…

A: Internal energy in first system = internal energy in the second system

Q: The Bodø NATO base in northern Norway uses a heat pump to extract heat from ocean water. 7.0°C ocean…

A: Given Data: The final temperature of the ocean water is, T2=7°C The initial temperature of the ocean…

Q: It is important for the body to be able to cool itself even during moderate exercise. Suppose a 70kg…

A: Given: Man's mass, m=70 kg Time, t=30 min=30×60=1800 sec Power, P=1000 W

Q: A Carnot heat pump is used to heat and maintain a residential building at 22°C. An energy analysis…

A: Given : TH = 22°C = 22 + 273 = 295 K Q = 2500 kJ/h°C  TL = 4°C = 4 + 273 = 277 K

Q: Let 1.00 kg of liquid water at 100°C be converted to steam at a pressure of 1.01 * 105 Pa. The…

A: Given data: 1kg of water  Initial temperature of water = 100°c Final temperature of steam = 100°c…

Q: A system undergoes a two-step process. In the first step, the internal energy of the system…

A: Given:For 1st step:Internal energy of the system = 228 JWork done on the system = 142 JFor 2nd…

Q: Two distinct systems have the same amount of stored internal energy. Assume 500 J are added by heat…

A: the change in internal energy of the first system if it does 200 J of work is 300J the second system…

Q: A 54-kg mountain climber, starting from rest, climbs a vertical distance of 779 m. At the top, she…

A:

Q: The first law of thermodynamics relates the heat transfer into or out of a system to the change of…

A: The first law of thermodynamics can be written as, ΔU=Q-W Here, ΔU is the change in internal energy…

Q: A carnot device extracts 5.00 kJ of heat from a body at -10.00C. How much work is done if the device…

A: According to the Carnot's engine  Work done = Heat input - Heat output

Q: A gasoline engine has a power output of 180 kW. Its thermal efficiency is 0.28. How much heat must…

A: Write the given values with suitable variables. Pout=180 kWη=0.28 Here, Pout denotes the output…

Q: What is the change in internal energy (in J) of a system that does 4.50 ✕ 105 J of work while 3.40 ✕…

A:

First law of Thermodynamics

The word thermodynamics consists of two words: thermo- and dynamics. Dynamics means the study of motion. The field of thermodynamics is all about the study of the movement of heat. In a more meaningful way, it is stated as the study of the transfer of energy. Energy transfer is something that we encounter in day-to-day life. Automobiles, chemical reactions, refrigerators, and power generators work on the basis of thermodynamic principles.