What is the change in internal energy of the system (ΔU) if 65 kJ of heat energy is evolved by the system and 62 kJ of work is done on the system for a certain process?

Q: Sign conventions for Heat (g) and Work (w) : The change in internal energy of a system can be…

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Q: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

A: The value of ∆E for a system that gains 115kJ of work from the surroundings and loses 79 kJ of heat…

Q: An automobile engine provides 545 Joules of work to push the pistons and generates 2395 Joules of…

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Q: . Explain how the sum of heat and work can be a state function,even though heat and work are…

A: Given : Explain how the sum of heat and work can be a state function,even though heat and work are…

Q: When 320 mg of naphthalene, C10H8(s), was burned in a bomb calorimeter, the temperature rose by 3.05…

A: An apparatus used to determine the heat associated with chemical or physical reactions is called a…

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: 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 reletionship between internal energy, heat capacity and enthropy?

A: The amount of energy required to increase the temperature of a substance by one degree celsius is…

Q: Calculate the internal energy of the system that absorbs 50 kJ of heat and 165 kJ work done by the…

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Q: During an isothermal compression of an ideal gas, 410 J of heat must be removed from the gas to…

A: Since 410 J of heat is removed from the gas, Hence heat transfer (q) = - 410 J Since the compression…

Q: Which of (i) volume, (ii) heat, (iii) internal energy, (iv) density are state functions?

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Q: Write temperature difference in terms of heat capacity and heat energy* a. ∆T=Q/C b.∆T=QC c.∆T=C/Q…

A: Heat capacity of a substance is defined as the amount of heat energy required to increase the…

Q: Provide a molecular interpretation of heat. How is it different from the equivalent molecular…

A: Given- a molecular interpretation of heat. How is it different from the equivalent molecular…

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: For a particular reaction, the system absorbs 6kJ of heat and does 1.5kJ of work on its…

A: Given: The heat absorbed by the system, (Q) = + 6 KJ. The work done, (W) = - 1.5 KJ (Negative as…

Q: If a system absorbs 39 kJ of energy and does 15 kJ of work on the surroundings, calculate the change…

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Q: Which is/are state functions: I. work, w II. Heat, q III. enthalpy, H IV. Internal energy, E

A: Here we have to choose which are state function.

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: Enthalpy is a state function. What does it mean to be a state function?

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Q: Why are work, w, and heat, q, not state functions?

A: State function only depends on the final system and on the initial system, it does not depend how we…

Q: a system recieves 425J of heat and delivers 425J of work toits surroundings. what is the change in…

A: Given Heat ( q ) = +425 J ( as heat is received to system ) Work ( w) = +425 J ( as work done by…

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

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Q: gas in a cylinder is compressed by a piston. If the work done by the piston is 451 J, and the system…

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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: What is the change in the internal energy of the system if 69 kJ of heat energy is evolved by the…

A: From first law of thermodynamics, Heat added to system = change in internal energy + work done by…

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: An automobile engine provides 550 joules of work to push the pistons and generates 2120 joules of…

A: ∆W = -550 J (negative sign because the system is doing work) ∆Q = -2120 J (negative because heat is…

Q: Determine the internal energy change if 718 J of heat are transferred to the system and 437 J of…

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Q: An automobile engine provides 646 Joules of work to push the pistons and generates 2258 Joules of…

A: According to the thermodynamics law  ∆U = Q + W Given Work done on the piston = - 646 J Heat…

Q: According to the first law of thermodynamics, what quantity is conserved?  What is meant by the…

A: According to First law of thermodynamics, energy cannot be created nor destroyed but can be changed…

Q: 1. a. (i) The work done to compress a gas is 85.0 J. As a result, 21.0 J of heat is given off to the…

A: Given that w = 85.0 j (it is positive because work done on gass)  q = - 21.0 j (it is negative…

Q: If 2.508 mol of a material produces 733.5 kJ of heat in a reaction, determine the molar enthalpy for…

A: Moles of material = 2.508 moles Heat produced in the reaction means this is exothermic reaction.

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: A system gains 727 kJ727 kJ of heat, resulting in a change in internal energy of the system equal to…

A: As we know; deltaU = Q + W  where delta U is change in internal energy  Q = heat produced  W =…

Q: Explain the difference between heat capacity and specific heat capacity.

A: The heat capacity of any substance is the amount of heat that is required to increase the…

Q: A system does 546 kJ of work and loses 271 kJ of heat to the surroundings. What is the change in…

A: Work (w) = -546 KJ (because work is done on the surrounding, so this is negative) Heat (q) = -271 KJ…

Q: .125 kJ of energy is added to a system while 104 kJ of work is done by the system. Calculate the…

A: The change in internal energy,ΔU is =  ΔU = q + w q = heat added/removed from the system w = work…

Q: What was the internal heat when the change in energy was 750 J and the work by the system was 200 J?…

A: Given: Internal energy, U = 750 J Work done by the system, w = +200 J Heat, q=?

Q: change in the internal energy

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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: Calculate the magnitude of q for a system that does 508000 kJ of work on its surroundings and for…

A: Given information,

Q: What are the thermodynamic quantities of a system that affect the amount and sign of the internal…

A: a. i. The thermodynamic quatities that affect the amount and sign of the internal energy change of…

Q: 1. A 300 increased in the internal energy of the system happen while it expands to do 75.25 J of…

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Q: A system initially at 1.50L changes its volume under an external pressure of 0.988atm while…

A: Given data:

Q: A change in a system occurs such that 31.1 J of work is done by the surroundings and 22.4 J of heat…

A: Internal energy is the stored energy of the system. From the first law of thermodynamics it is clear…

Q: Determine the change in the internal energy of a system if 5.5 x 107 kJ of heat is removed from it…

A: Given Data- q = -5.5×107 kJ (Heat is removed) W = +2.5×107 kJ (work done on the system)