Given delta U= q + w, if 13 kJ of heat was absorbed by a system and 9kJ of work was done on the system, what is the total internal energy change?

Q: Which of the following conditions for q and w represent a system gaining heat from the surroundings…

A: Endothermic reaction is a reaction where heat is absorbed by the system from the surroundings.

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: a system performs 274.0 Joules of expansion work while absorbing 168.0 joules of heat. how many…

A: According to first law of thermodynamics the relationship between change in internal energy, heat…

Q: Assume that a particular reaction evolves 244kJ of heat and that 35kJ of PV work is gained by the…

A: Given that: Heat evolved (q) = -244 kJ (negative sign indicate that heat is released) P∆V = -35 kJ…

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: 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: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.54 kg sample…

A: Mass=0.54kg =540 gm (1 kg = 1000gm) T1=-2.9°C= (-2.9+273)K=270.1K  T2=10.5°C=(10.5+273)K=283.5K…

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: 6. The combustion of 0.250 grams of ethane gas, C2H6, causes a temperature rise of 2.50°C in a bomb…

A: Given: The mass of ethane combusted = 0.250 g The rise in temperature = 2.50 oC The heat capacity of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 664.0 mg sample…

A: To find the molar heat capacity, we need to use the formula which contains mol, specific heat and ∆T…

Q: A balloon is inflated with air from an initial volume of 1.44E-1 L to 2.16E0 L against an external…

A:

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: Here you are invited to explore the implications of the temperature dependence of the heat capacity…

A: The equation for the molar heat capacity at constant pressure in terms of derivatives is as follows:

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: Calculate the value of internal energy if 670J of heat energy is absorbed by the surrounndings and…

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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: When a 63.40 gram mass taken from an unknown metal at 87.80 80C is placed in a calorimeter…

A: The specific heat capacity is calculated by the formula, Q=m.c.∆T Q is the energy transferred m is…

Q: If a system has 325 keal of work done to it, and releases S5.00 x 10 kJ of heat into its…

A:

Q: When 1513 J1513 J of heat energy is added to 39.8 g39.8 g of hexane, C6H14,C6H14, the temperature…

A: Since,   q =m×c×∆TWhere q =heat added to the system            m =mass of given compound           c…

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

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Q: Given a system that absorbs 500 kJ of heat while doing 400 kJ of work, find the change in its…

A: Dear student since you have asked multiple questions but according to guidelines we will solve 1st…

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

A:

Q: An instrument consisting of electric motor and a battery produced 25 kJ of work and lost 10 kJ as…

A: Since the relationship between ΔU, q and w is given as ΔU = q + w  where ΔU = change in internal…

Q: The heat capacity of an Object (F) is the amount of heat (Q) required to raise it’s temperature, per…

A: The properties of matter that do not depend on the size or quantity of matter in any way are…

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 chemist carefully measures the amount of heat needed to raise the temperature of a 412.0 mg sample…

A: The molar heat capacity of a compound is defined as the amount of heat required to raise the…

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: 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: 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 system receives 75.0 joules of electric work, delivers 274.0 joules of expansion work and absorbs…

A: A system receive 75 joule of electric work amd deliver 274 joule of expansion work and it absorb 168…

Q: A system does 435 kJ of work(w) and loses 312 kJ of heat(q) to the surroundings. What is the change…

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Q: the change in internal energy (in kJ) of a system that transfers 786 J of thermal energy and does…

A: Given: Heat transfer, q = -786 J Work done, w = -321 cal = - 321 x 4.184 J = - 1343.064 J

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: A 4.98 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 567.0 mg sample…

A: amount of heat needed q = m x S x ∆T  where  q = 11.6 J  m = mass of sample = 567 mg x 10-3 g/1mg =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.52 kg sample…

A: Given, Mass of C6H4F2 sample = 1.52 Kg Amount of heat = 2.83 * 104 J Temperature raises from - 0.9◦C…

Q: For a constant-pressure process, what is the difference between the internal energy (delta U) and…

A: At a constant pressure, the change in enthalpy is equal to the sum of internal energy and the…

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

A: Given information,

Q: The molar heat capacity of silver is 25.35 J/mol - °C. How much energy would it take to raise the…

A: Part B : We would calculate heat required by using formula :  q = n × Cm × ∆T  Where, n = moles  Cm…

Q: Which of the following statements is/are CORRECT?   1. If a reaction occurs at constant pressure, q…

A:

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

A:

Q: Calculate the change in internal energy (AE) for a system that is giving off 65.0 kJ of heat and is…

A: Given: Heat transfer, q=-65.0 kJ (Heat lost, so, q=-ve) Work, w=-855 J=-855 /1000 =-0.855 kJ   (1 kJ…

Q: A system does 435 kJ of work(w) and loses 312 kJ of heat(q) to the surroundings. What is the change…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 2- Calculate the total internal energy change (AU) for a system that loses 50 J of heat and gains…

A: According to the 1st law of thermodynamics :-      △U=q+Wwhere ,       △U=Change in internal…

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)

Q: A chemical reaction is run in which 412 Joules of heat are generated and the internal energy changes…

A: We have to calculate the work done .