The energy absorbed by a certain system is -130 kj . If the system does 90kj of work on the surroundings how much heat is lost or gained by the system?

Q: Suppose that the molar enthalpy of a reaction is -73.45 kJ/mol and 4.222 moles are reacted. How many…

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Q: What is the specific heat of a 66.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The relation between specific heat and heat energy is given by q = m * C * ΔT Where q = heat energy…

Q: 1.30 kg of an unknown substance was heated up using 7,198 cal energy from 46.8 degree celsius to…

A: Given: Mass of the substance, m=1.30 kg=1.30 x 1000=1300 g Heat provided,q =7,198 cal =7198 x 4.184…

Q: What is the change in internal energy

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Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A: Given: Work done = 623 Joules Change in internal energy = -2731 Joules

Q: An automobile engine provides 561 Joules of work to push the pistons. In this process the internal…

A: To solve this question, use the formula which contains q, ∆U, and w in it. Give the signs to the…

Q: f a system does 19.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change…

A: We can find the change in the internal energy of the system(∆U) by using the equation for the 1st…

Q: 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ     How much heat will be released when 85 g of Al…

A: Given thermochemical reaction equation is 4Al(s) + 3O2 (g) --> 2 Al2O3 (s) Δ H = -3351 kJ…

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: For a particular process, the system releases 17 kJ of heat and has 21 kJ of work performed on it.…

A: Heat released by a system has a negative sign and work done on the system has a positive sign.

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes…

Q: An automobile engine provides 621 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the following expression is obtained: ∆U=q+w…

Q: What is the internal energy of a system that has 45.2 J of work done to it and releases 74.6 J of…

A: Given, work done on system ,W = 45.2 J Heat released from system to sorroundings, q  = 74.6 J

Q: In a calorimeter, a 90.0 g piece of metal at 92.4 *C is submerged in 100.0 g of water, that is…

A: In a calorimeter, a 90.0 g piece of metal at 92.4 °C is submerged in 100.0 g of water that is…

Q: A 1.05 gram sodium is burned in a constant-volume calorimeter that has a heat capacity of 1550 J/°C.…

A: Given that: Mass of sodium = 1.05 g Heat capacity (C) = 1550 J/°C Mass of water = 400 g Temperature…

Q: fa system absorbs 155.0 kJ of heat from its surroundings and the system does 65.0 kJ of work on its…

A: In this question, we want to determine the value of Change in internal energy of the system.  How we…

Q: a system does 72.0 kJ of work on its surroundings and releases 105 kJ of heat, what is the change in…

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Q: Propane, C3H8, reacts with oxygen to produce carbon dioxide, water and heat. C3H8 + 5 O2 → 3 CO2 + 4…

A: Number of moles    = Given Mass/ Molecular mass

Q: 12. An aluminum kettle weighs 1.05 kg.(a) What is the heat capacity of the kettle?(b) How much heat…

A: (a) Given that mass of aluminium kettle =1.05 kg = 1050 g Now, heat capacity is explained as the…

Q: The work done when a gas is compressed in a cylinder is 572.0 J. During this process, there is a…

A: Change in internal energy of a system during compression of a gas can be calculated by using the…

Q: If a system absorbs 155 kJ of heat from its surroundings and the system does 95 kJ of work on its…

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Q: A chemist measures the energy change AH during the following reaction: Cl₂(g)+H₂(g) → 2 HCl(g) ΔΗ=…

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Q: 155 Joules of heat is added to a system that performs 63 Joules of work.  Determine the internal…

A: Heat supplied to the system=155Joules Work done =63 Joule we have to find the internal energy change…

Q: heat for the combustion of sucrose (table sugar, C12H22O11) is -5,647 kJ for

A: Number of moles = mass/ molar mass  Number of moles of O2 = mass of O2/molar mass of O2

Q: A gas expands and does work on the surroundings equal to 0.21 L atm. At the same time, it absorbs…

A: The question is based on the concept of chemical thermodynamics. We have  to calculate internal…

Q: In a calorimeter, the temperature of 60.0g of water increases from 23.3°C to 38.7°C when a 102.4°C…

A: We can use the following equation to calculate the specific heat of the nickel: q=mNi×CNi×ΔTNi where…

Q: An automobile engine provides 519 Joules of work to push the pistons.In this process the internal…

A: The objective of the question is to calculate the amount of heat (q) that must be carried away by…

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

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: 7. 200g of copper is placed in an oven. The hot metal is removed from the oven and quickly added to…

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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: 200 grams

A: A) moles of NH3 = 200g / 17gmol-1 = 11.765mol  B) moles of O2 = 450g / 32gmol-1 = 14.063mol

Q: A gas sample does 214 J of work upon expanding and the cools, losing 34 J of heat. What is the total…

A: The first law of thermodynamics is given asΔU=Q−W, Δ U = Q − W , whereΔU is the change in internal…

Q: When a system gives off 100J of heat and the surroundings does 50J of work on the system, what is…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: If a process gives off 58 calories of heat but the internal energy of the system remains unchanged,…

A: Welcome to bartleby !  Introduction :  We have to tell kind of work and how much is involved .

Q: ystem does 675 kJ of energy onto its surroundings while releasing 1543 J of heat. What is the change…

A: To find the change in energy of the system, you need to consider both the work done by the system…

Q: While 60 J work is done on the gas, the internal energy increased to 1.8 kJ. What was the value of…

A: According to the first law of thermodynamics, energy can neither be created nor it can be destroyed…

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: net change in the internal energy

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