For a particular reaction, the system absorbs 6kJ of heat and does 1.5kJ of work on its surroundings. What are the change in internal energy and enthalpy change of the system?

Q: What are the signs for q and w to represent a system that's doing work on the surroundings, and…

A: “The relationship between heat with other forms of energy like light, mechanical work is studied…

Q: which of the following signs on q and w represent a system that is doing work on the surroundings…

A: Given :-  System is doing work on surrounding  System is gaining heat from surrounding  To…

Q: Does the amount of work that a system can do on its surroundings depend on the path of the process?

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: A sample of toluene undergoes combustion in a bomb calorimeter that is insulated by 814 g of water…

A: Given: Mass of water = 814 g. Heat capacity of calorimeter = 1015 J/oC And the increase in the…

Q: A piston compresses the air in the cylinder by doing 84J of work on the air. As a result, the air…

A: Given,  What is change in internal energy = ΔU = ?

Q: A system does 516 kJ of work and loses 256 kJ of heat to the surroundings. What is the change in…

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Q: A system gains 647 kJ of heat, resulting in a change in internal energy of the system equal to +226…

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Q: Determine the standard enthalpy change for the combustion of butane (C4H10) forming water (H2O)…

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Q: The standard heat of combustion of propanol, C3H7OH, is 2021 kJ/mol. How much heat would be…

A: Number of moles of any substance can be calculated by dividing the mass of the substance with its…

Q: .If a system does 84.0 kJ of work on its surroundings and releases 105 kJ of heat against a constant…

A: Given : Work done on surrounding by system = 84.0 KJ  And heat released = 105 KJ Since heat is being…

Q: . What is the change in internal energy of the system (AU) if 82 kJ of heat energy is absorbed by…

A: According to the first law of thermodynamics, the internal energy is equal to the sum of heat…

Q: A system takes in 0.430 kJ of heat while it does 0.830 kJ of work on the surroundings. What is the…

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Q: During a certain chemical reaction 270 J of heat is absorbed by the system and 500 J of work is done…

A: △U = q-w  ∆U = change in internal energy q = heat absorbed by the system w = work is done

Q: Given delta U= q + w, if 13 kJ of heat was absorbed by a system and 9kJ of work was done on the…

A: Internal energy is the total energy of a system that consists of kinetic and potential energies. The…

Q: What is the work involved in a process where a system experiences a net loss of energy equal to 4.6…

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Q: During a certain chemical reaction 1,395 J of heat is released from the system and 360 J of work is…

A: Given :-  work done on surrounding = 360 J  heat released from system = 1395 J  To be calculated :-…

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

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Q: Calculate the change in internal energy for a system that is giving off 45.0 kJ of heat and is…

A: According to the second law of thermodynamics, change in internal energy is related to heat and work…

Q: A student runs a reaction in a closed system. During the reaction, 64.7 kJ of heat is released to…

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

Q: A system does 556 kJ of work and loses 251 kJ of heat to the surroundings. What is the change in…

A: From the first law of thermodynamics we have, ∆E =Q + W Where, ∆E is change in internal energy…

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: What is the change in internal energy of a system that absorbs 600 KJ of heat energy at the same…

A: Given,  a system that absorbs 600 KJ of heat energy at the same time does 450 KJ of work. Therefore,…

Q: Calculate the change in the internal energy for a certain process if 800 J of work is done on the…

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Q: Is enthalpy change an extenive or intensive property? What impact does this have on the quality of a…

A: The enthalpy of a system is nothing but the sum of internal energies of the system and its…

Q: . Calculate the work done on or by a system that absorbs 260 kJ of heat experiences a change in…

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Q: Calculate q, and determine whether heat is absorbed or released when a system does work on the…

A: Sign convention: Work done by the system on the surrounding = negative (-) Work done on the system…

Q: A system released 495KJ of heat and does 205KJ of work on the surroundings. What is the change in…

A: The first law of thermodynamics also implies that the change in the internal energy of a given…

Q: For a process, 153 J of heat was released by the system and 267 Jof work was done on the system.…

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Q: done against the system during compression of a gas, at the same time 385 J of heat is released from…

A: Answer  Apply 1st law  of thermodynamics  U  =  Q + W

Q: Is the change in enthalpy for a reaction an extensive property?

A: The enthalpy of a system is the sum of internal energies of the system and its  additional pressure…

Q: A change in a system occurs such that 76.2 J of heat flows in to the system and 66.5 J of work is…

A: Introduction: From the 1st law thermodynamics,  the change in internal energy, ∆U = q + w (q =…

Q: Explain the difference between the change in internal energy and the change in enthalpy of a…

A: Change in internal energy (∆U): Internal energy is the sum of Potential energy and the work done of…

Q: Use standard enthalpies of formation to determine ΔHorxnfor: 2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(l)…

A: Standard enthalpy of formation is defined as the amount of heat absorbed or evolved in the formation…

Q: A system gains 612 kJ of heat, resulting in a change in internal energy of the system equal to +181…

A: Given,Heat gain (Q)=612kJChange in internal energy(∆U)=181kJ

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

A: Given:Heat (q) = 50 J        Work (W) = 175 J since, work is done on the system which means energy…

Q: A system receives 450 kJ of heat from its surroundings and the surroundings do 50.0 kJ of work on…

A: Given: Heat (q) = +450KJ    The sign is positive because it absorbs from the surrounding.…

Q: What is the change in the internal energy of the system if the surroundings releases 300J of heat…

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Q: The internal energy of a gas decreases by 1.65kj when it transfers 1.87kj of energy in the form of…

A: Interpretation: The work done on the gas by the surroundings is to be determined. Concept…

Q: A system has 400J of heat added to it and then subsequently use 160J to do work. What is the change…

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Q: Consider the following four cases: (i) A chemical process in which heat is absorbed, (ii) A change…

A: Given here four cases and we are asked in how many of these cases does the internal energy of the…

Q: A 2.673 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Tf = 28.80°C  Ti = 25.03° C ΔT = Tf - Ti = 28.80° C - 25.03 ° C                                =…

Q: What is the work involved in a process where a system experiences a net loss of energy equal to 9.3…

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Q: Use standard enthalpies of formation to determine ΔHorxnfor: 2Al(s) + 3Cl2(g) → 2AlCl3(s) Enter in…

A: Given:2Al(s) + 3Cl2(g) → 2AlCl3(s)

Q: Find the change in internal energy when a gas absorbs 28 kJ of heat and has 13 kJ of work done on…

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Q: A system gains 612 kJ of heat, resulting in a change in internal energy of the system equal to +181…

A: Interpretation: A system gains 612 kJ of heat, resulting in a change in internal energy of the…

Q: What is the change in internal energy (in J) of a system that absorbs 0.697 kJ of heat from its…

A: This can be done using first law of thermodynamics.

Q: A system receives 425 J of heat and delivers 425 J of work toits surroundings. What is the change in…

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Q: Consider the enthalpy diagram of an exothermic reaction. Where are the reactants in relation to the…

A: The diagramme is given below.

Q: A system gains 667 kJ667 kJ of heat, resulting in a change in internal energy of the system equal to…

A: According to the first law of thermodynamics; Consider the given information is as follows;…

Q: A system does 501 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

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