A hot plate is used to transfer 400 cal of heat to a beaker containing ice and water. 500 J of work is also done on the contents of the beaker by stirring. What is the increase in internal energy of the ice water mixture? And how much ice melts in this process?

Q: An automobile engine converts heat into work via a cycle. The cycle must finish exactly where it…

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Q: A 2000kg car is advertised that it can go from rest to 30m/s, drives 100km, and 3000m in height on 1…

A: Part (a): The 1 gram of gasoline gives 5×104 J of heat energy. Hence, the total heat energy (Q)…

Q: A thermodynamic system undergoes a process in which its internal energy decreases by 500 J. If at…

A: Given that:Internal energy, ∆Eint=-500 JWork done, W=800 J

Q: How long does a 65 kg adult need to walk at a rate of 5 km/h in order to burn off all the energy in…

A: Given Metabolic power for walking at  5 km/h is W=380 W Each slice of pizza contains energy of…

Q: A system absorbs 362 cal of heat and the same time does 360 J of work. What is the change in…

A: Given, W= 360 J Heat absorbed ,Q= 362 cal= 1514608 J From First Law of Thermodynamics, we have…

Q: A 20 kg block is slid down a rough ramp. The block starts from rest at the top of the ramp. When the…

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Q: After you drive for a while your tires will gain some energy via friction and heat up. If the air…

A: Given  Heat added Q=150J  Work done by gas W=100J

Q: An electrical power station requires 1.1 × 1014 J of heat transfer into the engine and has an…

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Q: A gasoline engine takes in 1.61 * 10^4 Jof heat and delivers 3700 J of work per cycle. The heat is…

A: Given: The heat taken by the engine Qc = 1.61×104 J. The work delivered by the engine W = 3700 J.…

Q: A gas in a closed container is heated with 10 J of energy in an isochoric process. Then, in an…

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Q: How much internal energy in Joule is generated when a (1.6100x10^1)-g lead bullet, traveling at…

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Q: The efficiency of an engine is 0.510.  For every 1.20 kJ of heat absorbed by the engine, how much…

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Q: A gasoline engine takes in 1.61 * 10^4 Jof heat and delivers 3700 J of work per cycle. The heat is…

A: Let n denotes the frequency, w denotes the work done in each cycle, and P denotes the power output…

Q: What is the change in internal energy of a system that takes in 3.33 106 J of heat, and does 4.50…

A: According to the first law of thermodynamics,∆U=Q-W.......(1)Where,∆U is the change in internal…

Q: How much heat transfer occurs to the environment by an electrical power station that uses 1251014 J…

A: efficiency of the machine= 100% heat provided = Qin= 1.25x1014 J heat transferred to the environment…

Q: The air inside a bicycle tire pump has 160J of work done on it as 56.4J of heat is added to it. What…

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Q: Give an explanation of how food energy (calories) can be viewed as molecular potential energy…

A: Given: Food energy can be viewed as molecular potential energy is discussed below.

Q: Solar energy is used for air conditioning a house. To maintain a pressurized water tank at 443 K…

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Q: How much heat transfer occurs to the environment per day by an electrical power station that uses…

A: Given: The total amount of heat transfer is 1.2×1014 J. The efficiency of the engine is 42%.…

Q: Compare the cost to make 48 kg of ice using two different refrigerators; one has a COP of 5.00 and…

A: Given data: Mass of ice, m = 48kg COP1 = 5 COP2 = 6 Electricity cost = 0.1$ / kWh

Q: A model steam engine of 1.00kg mass pulls eight cars of 1.00kg mass each. The cars start from rest…

A: Mass of engine, M = 1 kg  Mass of each car, M'=1 kg  Net mass of system = Total mass of 8 cars and…

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 model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start at rest…

A: Given Data:Mass of the steam engine Total mass of cars Initial velocity Final velocity Time Distance…

Q: A gasoline engine takes in 1.61×104 J of heat and delivers 3700 J of work per cycle. The heat is…

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Q: A heat engine is involved with exchange of heat of 1915 J, –40J, + 125J and –QJ, during one cycle…

A: Given data- Q1=1915 J Q2=-40 J Q3=125 J Q4=-Q J η=50%=0.5

Q: During a compression process, work of 20 Kj is done on a system while the system transfers 13 Kj of…

A: According to 1st law of thermodynamics, Here, ΔU, Q and W represent the change in internal energy,…

Q: 1 kg of ice, at -20°C, is taken out of the freezer and placed in a pot on a stove. If the stove's…

A: Heat capacity of Ice & Water: Heat capacity (C) of Ice & Water of unit mass is defined as…

Q: A 75 kg person cannot go out for a long time due to Covid-19 restrictions. That's why he rides a…

A: 80%Eelectric =Eheat              0.80Pt=mLv                       m=0.80PtLv

Q: The internal energy of a system is initially 24 J. The system does 25 J of work. What is the…

A: Given data:  Initial internal energy (Ui) = 24 J Work done by the system (W) = 25 J Heat added to…

Q: A weightlifter drinks a protein shake that contains 2.00 × 10² Calories. She then performs multiple…

A: Given Data:The protein shake contains the amount of energy isThe work done by the weightlifter is…

Q: A power plant taps steam superheated by geothermal energy to 558 K (the temperature of the hot…

A: Given data: Temperature of hot reservoir, Th=558 K Temperature of cold reservoir, Tc=305 K Output…

Q: Gas is sealed within a beaker with a movable piston top.  You decide to place the beaker into a…

A: The heat energy required to flow out of the beaker is,Q=60 J. The work done to compress the gas is,…

Q: The engine of a large ship does 2.00×108 J of work with an efficiency of 5.00%.…

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Q: A system does 137 J of work on its environment and gains 95.3 J of heat in the process. Find the…

A: The work done by the system on the environment,

Q: A Carnot heat engine uses a hot reservoir consisting of a large amount of boiling water and a cold…

A: Given: The time for which engine works is t=5 min. The mass of ice is m=0.0400 kg. The formula to…

Q: a coal fired power station is a huge hit engine. it uses hit transfer from burning coal to do work…

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Q: Consider the change in the internal energy of a system.  what is the change in the internal…

A: Given data: The work done by the system, δW=4.75×105 J   The heat supply to the system, δQ1=3.05×106…

Q: week 5 #9 A model steam engine of 1.00 kg mass pulls eight cars of 1.00 kg mass each. The cars start…

A: The objective of the question is to find the change in the internal energy of the engine. This can…

Q: Suppose 19.0 J of heat is added to a system and the net amount of work done by the system is 7.0 J.…

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Q: A gas is compressed inside a cylinder with an average force of 40 N acts to move the piston 0.20 m.…

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Q: A system absorbs 413 J of heat and does 177 J of work on its surroundings. What is the change in the…

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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.