When a system gives off 100J of heat and the surroundings does 50J of work on the system, what is the change in ΔU?

Q: A gas expands and does P-V work on the surroundings equal to 294 J. At the same time, it absorbs 246…

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: When 10.0 g KOH is dissolved in 100.0 g of water in a coffee-cup calorimeter, the temperature rises…

A: Coffee-Cup calorimeter is a device which is used to measure the enthalpy of chemical process at…

Q: 4. An amount of heat equal to 2500 J is added to a system, and 1800 J of work is done on the system.…

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Q: if a system does 25 J of work on its surroundings and is cooled by 35 J, what is the net energy…

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Q: What is the change in the internal energy of a system that absorbs 2,500 J of heat and that does…

A: The given data contains, A System absorbs 2500 J of heat work =7655 J

Q: What is the change in internal energy of a system if the system (a) absorbs 58 J of heat and does 58…

A: Given information, (a) System absorbs 58 J of heat and does 58 J of work (b) System absorbs 125 J of…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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Q: If a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the AE…

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Q: What is the change in internal energy

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Q: What is the change of internal energy in J of a system that releases 675 J of heat and has 875 J of…

A: According to first law of thermodynamics, we have : dU = q + w  ----(1) Where dU is change in…

Q: 4. A system undergoes a process consisting of the following two steps: Step 1: The system absorbs 73…

A: Q = ∆E + W For work done on the system: W = -ve For work done on by the system: W = +ve

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 45.0 kJ of work on…

A: Internal energy of a system is the overall energy that belongs to the system.  Heat is denoted by…

Q: If the same amount of heat were added to individual 1.0 g sample of water, methanol, and aluminum,…

A: NOTE: It will be the greatest temperature change in the question and not the energy change because…

Q: A system does 467 kJ of work and loses 157 kJ of heat to the surroundings. What is the change in…

A: First law of thermodynamics It states states that heat is a form of energy, and thermodynamic…

Q: For a process,AE =+148 kJ and the system does 34 kJ of work on the surroundings. This means that...…

A: Given : ∆Esys = +148 kJ Work on he surroundings = 34 kJ

Q: A system releases 689 kJ of heat and does 105 kJ of work on the surroundings. ▾ Part A What is the…

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Q: If 400 J of heat is given to a system and the system does 200J of work, what is the change in…

A: Answer:- This question is answered by using the simple concept of calculation of change in energy…

Q: 1. Calculate the change in the internal energy of the system for a process in which the system…

A: "To get remaining sub-parts solved please repost the complete question and mention the sub-parts to…

Q: calculate the enthalpy of dissolution of CsCl(s) in kJ/mol.

A: change in enthalpy as a substance is dissolved in solution is known as a enthalpy of dissolution. it…

Q: A gas expands and does work on the surroundings equal to 279 J. At the same time, it absorbs 216 J…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: A system releases 622 kJ of heat and does 105 kJ of work on the  surroundings. What is the change in…

A: Internal energy is defined as the energy associated with the random, disordered motion of molecules.…

Q: A system releases 75 J of heat. And the same time 19 J of work is done on the system by the…

A: The formula foe finding Internal energy is, ∆U=q+w where ∆U is the change in internal energy, q is…

Q: A system receives 825 J of heat and delivers 825 J of work to its surroundings. What is the change…

A: Given:Heat received by system, dQ = 825Jwork done by system, dW=825Jchange in internal energy, dU…

Q: 1. Calculate the value of ΔE in joules for a system that loses 50 J of heat and has 150 J of work…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: The energy absorbed by a certain system is -130 kj . If the system does 90kj of work on the…

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Q: 2. The work done when a gas expands in a cylinder is 264 J. During the process, there is a heat…

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Q: If a system does 73.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

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Q: Which statement is true of the internal energy of the system andits surroundings following a process…

A: The change internal energy is positive that is ∆Esys=+65 kJ.

Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 45 kJ of work on its…

A: Given, Amount of heat absorbs by the system q = 155 kJ work done by the system W = 45 kJ We are…

Q: What is the AE of a system if 184 kJ of work is done on the system and it loses 267 kJ of heat?

A: We use the first law of thermodynamic for calculating the change in internal energy. This low state…

Q: When thermal energy is transferred from the system to its surroundings, heat (q) is:

A: When thermal energy is transferred from the system to its surroundings, heat (q) is negative  It is…

Q: 1. A 275 J of work is done on a system that evolves 90 J of heat to the surroundings. a. What is the…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For the…

Q: A system absorbs 140 J of heat from the surrounding and 85 J of work is done on the system by…

A: A system absorbs 140 J of heat from the surrounding and 85 J of work is done on the system by…

Q: A system releases 648 kJ of heat and does 150 kJ of work on the surroundings. What is the change in…

A: Given,System releases 648 kJWork on the surrounding = 150 kJ

Q: You add some of the white crystals to a small test tube filled with water. The water in the test…

A: This can be calculated by specifi heat formula, CP = (dH/dT)P dH = Enthalpy change  dT = Temperature…

Q: If a system does 84.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: From first Law of Thermodynamics , the total change in internal energy of the system can be…

Q: A system suffers an increase in internal energy of 80 J and at the same time has 50 J of work done…

A: Given : Increase in internal energy ( U ) = +80 J Work done on the system ( W ) = +50 J Heat change…

Q: Calculate the change in energy for the following processes and identify if the process is…

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Q: A gas expands and does work on the surroundings equal to 2.17 L atm. At the same time, it releases…

A: First law of thermodynamics It states that the internal energy of a system is equal to the heat…

Q: How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45 g silver…

A: The heat lost by the coffee cup is gained by silver spoon.This relationship can be written as shown…

Q: Which statement is true of the internal energy of the system and its surroundings following a…

A: The first law of thermodynamics states that the energy of the universe is constant i.e. the sum of…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 75.0 kJ of work on…

A: Answer :-  The change in internal energy of the system is  +80.0 kJ.…

Q: 2. An 88.5 gram piece of iron initially at 78.8°C is place in a beaker containing 244 grams of water…

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Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 35.0 kJ of work on…

A: Since we know that according to the first law of Thermodynamics ∆E = q + w  Where , ∆E = change in…

Q: Consider the combustion of propane: C3 Hs (g) + 502(g) → 3CO2(g) + 4H2O(1) AH = -2221 kJ A balloon…

A: It is given that heat transfer process is 60.0 % efficient. So, 1.6×108 Joules of energy is actually…

Q: If a system does 80.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

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Q: 1. Find the change in internal energy, when 175 J of work is done on a system that evolves 50 J of…

A: The expression for the change in internal energy is ΔU=q+w.......(1). Where, ΔU represents heat…

Q: If a system absorbs 155.0 kJ of heat from its surroundings and the system does 95.0 kJ of work on…

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Q: When a metal object is dropped into cold water, it releases 4,715 J of energy to its surroundings,…

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Q: If a system does 62.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: Ca (s)  + 1/2 O2  (g)  -------> CaO (s)    ΔH°=-635kJ/mol to get desired equation we have to…