If 10 kJ of thermal energy is added to the system and 10 kJ of work is done by the system, what happens to the internal energy? The internal energy does not change The internal energy decreases by a smaller amount The internal energy increases at a smaller amount The internal energy decreases the same amount

Q: A person is holding a piece of ice and it begins to melt. What is happening in terms of thermal…

A: The temperature of the hand is higher than the temperature of the ice. From the law of calorimetry,…

Q: A fire is lit in a hot air balloon, causing 100 J of heat to flow into the air in the balloon.…

A: The change in internal energy is given by, ∆U=Q-W

Q: Your feet feel warmer on a rug than on a tile floor because a rug   Question 1 options:   is…

A: Heat conduction

Q: An assistant for a football team carries a 26.0 kg cooler of water from the top row of the stadium,…

A:

Q: A certain amount of heat is transferred to a system, and the system performs some work on its…

A:

Q: A house designed for passive solar heating has a substantial amount of brickwork in its interior to…

A: Given data:  Mass of each brick (m) = 2 kg Specific heat capacity (c) = 850 J/kg.K Total heat…

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

A:

Q: The squeaker on a dog’s squeaky toy is broken so that no air can enter or escape. The volume of the…

A: Given data: The initial pressure is P1=4.5×105 Pa The pressure of dog bite is P2=2.6×106 Pa The…

Q: The second principle of thermodynamics implies that (a) thermal energy cannot be entirely converted…

A: Correct option is A second law of thermodynamics states that , "It is impossible to construct a…

Q: why does the change in internal energy decreases as the volume of ethanol increases? For 25ml…

A: As concentration increasing oxygen concentration in water is also increasing. More the  oxygen less…

Q: 210 J of heat is added to a system having an internal energy of 58 J. Calculate the amount  of the…

A:

Q: The air inside a bicycle tire pump has 10.9 joules of work done on it as 8.8 joules of heat is…

A: The work done on air  W= -10.9 J (Negative since work is done on the system ) The heat conducted…

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

A:

Q: what happens to the “lost” kinetic energy that is not converted to gravitational potential energy?…

A: Law:- energy neither be created nor be destroyed but can change from one form to another form

Q: The efficiency of a muscle during weight lifting is equal to the work done in lifting the weight…

A: efficiency of a muscle during weight lifting is equal to the work done in lifting the weight divided…

Q: A 1.0 x 102-kg steel support rod in a building has a length of 2.0 m at a temperature of 20.0°C. The…

A: Part A:

Q: An assistant for a football team carries a 26.0 kg cooler of water from the top row of the stadium,…

A: We kno that work done  W=Fdcosθ a) F=26*9.81=255.06  angle θ=180 Wok done by the assistant…

Q: In the steam engine, the amount of heat is 4.18J and work is 2.0J, what is the change in internal…

A: Amount of heat, Q = 4.18 J Work, W = 2.0 J Change in internal energy of the system, ∆U = ?

Q: A heated rock is placed in a container of water that is cooler than room temperature. The objects…

A: After sometime the rock, water and room would became in thermal equilibrium. By virtue of which the…

Q: The first law of thermodynamics extends the principle of conservation of energy to include heat as…

A: A is Correct E is correct F is correct

Q: When an ideal is subjected to an isothermal process, (a) now work is done by the system (b) no heat…

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Q: A 1,500 kg car traveling at 13.4 m/s (30 mph) applies its breaks and comes to rest in 5.5 seconds.…

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Q: 600 J of work are done on a system in a process that decreases the system's thermal energy by 400 J.…

A: Given that : 600 J of work are done on a system in a process that decreases the thermal energy

Q: A heat pump is used to heat a house in the winter and then reversed to cool the house in the summer.…

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Q: You add 1285 J of heat to a system at constant pressure of 2.77 x105 Pa.  While doing so, its…

A: Given, 1285 J heat is added to the system so Q=+1285 J The constant pressure is P=2.77 x105 Pa…

Q: For thermal energy to move from a cold object to a warm object, what must happen?

A: In natural flow, heat flow from hot object to cold object, without aid of any device.

Q: What is the internal energy of the system at point D? * O 203 J O 609 J 812 J O 1,013 J

A:

Q: Consider the following processes. 1. Energy flows as heat from a hot object to a colder object. 2.…

A: Energy flows from the higher temperature to the lower temperature. This energy flow is given as…

Q: Air flows steadily at a rate og 0.5 kg/s through an air compressor, entering at 7 m/s, 100 kPa of…

A: Air flow rate through the compressor,  m' = 0.5 kg/s  velocity of air at the inlet to compressor ,…

Q: Heat transfer is always from higher reservoir to lower reservoir and not the opposite because:…

A: In Higher temperature, the atoms and molecules are in excited state. They are thermally agitated.

Q: Consider an automobile traveling at a constant speed along a road. Determine the direction of the…

A: a) Radiator of the car: Since radiator rejects heat to atmospheric air .The heat interaction for…

Q: What is the change in entropy of 500 grams of steam at 110 degrees Celsius when it is condensed to…

A: Mass of steam = 500 gram = 0.5 kg. Temperature = 110°C Total heat required = Latent heat of…

Q: The air inside a bicycle tire pump has 14.1 joules of work done on it as 6.9 joules of heat is…

A: The first law of thermodynamics is given as, ΔU = Q - W Where, ΔU is a change in the internal energy…

Q: As a result of friction between internal parts of an isolated system a, the kinehic energy of the…

A: Mechanical energy is the sum of kinetic and potential energy of an object.

Q: A real heat engine works between two heat sources. The heat absorbed by the machine from the hot…

A:

Q: A hollow drinking straw is placed in a glass of warm water.  Suppose that some of the water started…

A: Thermodynamics : It denotes with the study of energy, the transformation of energy between various…

Q: An object can have its entropy decrease only if... O heat flows into the object. O work is done on…

A: Objective: To choose the correct option among the given options for the given statement. An object…

Q: A block (4 kg) starts from rest and slides down a frictionless ramp #1 of height 7 m. The block then…

A:

Q: A cook heats up food from 20 °C to 120 °C with the thermal energy of 500000 J, the heat capacity of…

A: Given: The intial temperature is 20oC. The final temperature is 120oC. The thermal energy is 500000…

Q: A heat engine operates between a heat reservoir at temperature 700K and another at 300K. Calculate…

A:

Q: The energy of a system always remains ?constant. always increases . decreases when work is done on…

A: Here the correct answer is the energy of a system always decreases when work is done by the system.

Q: a motor that absorbs 2500 J of heat while doing 1700 J of work. What is thechange in the motor’s…

A:

Q: A gas in a closed container is added with 20J of heat. The lid to the container is then lifted for…

A: Heat energy added to a gas in closed container = 20 J force = 2.5 N lid is lifted by a distance = 20…

Q: A heat pump water heater (HPWH) heats water by absorbing heat from the ambient air and transferring…

A:

Q: A foam cup is filled with hot water and allowed to cool while being stirred by a paddlewheel.…

A: In the given question, We have to determine the change in internal energy of the water

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.