What is the mass of 5.00 mol of ethanol?         b) How much heat Q enters the ethanol?       c) How much work W done by the ethanol because of its thermal expansion?     d) What is the ratio W/Q?

Q: A change in a system occurs such that 92.1 J of heat flows in to the system and 31.8 J of work is…

A: From the first law of thermodynamics, ∆U = Q - W where, ∆U = change in internal energy  Q = heat…

Q: calculate w for the engine.

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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: An experimenter adds 980 J of heat to 1.75 mol of an ideal gas to heat it from 10.0 ∘C to 25.0 ∘C at…

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Q: What is the change in internal energy for a system if the system absorbs 537 kJ of heat and does…

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Q: A sample of gas in a cylinder with a free-floating piston for a lid is heated. The gas gains 107 J…

A: given heat (q) = 107 J work done (w) = 23 J

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: A heated gas expands and presses on a piston. In this example, work is done: A) By the gas on the…

A: If the gas is heated, it will expand and push the piston up, thereby doing work on thepiston

Q: Two moles of an ideal gas absorb 711 J of heat in a compression of 18 to 8 liters, with 711 J of…

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

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

Q: An automobile engine provides 556 Joules of work to push the pistons. In this process the internal…

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Q: system that is doing work on the surroundings and also gaining heat from surroundings

A: Option 4. Is correct-> q= positive, w= positive We concentrate on the effect that a system (such…

Q: An automobile engine generates 2228 Joules of heat that must be carried away by the cooling system.…

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Q: which of the following signs on q and w represent a system that is having work done on it by the…

A: • Sign Convention for Work, w i) w is positive, when work is done on the system by the surroundings…

Q: The condition where a system that is doing work (w) on the surroundings while gaining heat (q) from…

A: Explanation to the correct answer is given below

Q: A system releases 422 kJ of heat and does 203 kJ of work on the surroundings. What is the change in…

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Q: An automobile engine provides 549 joules of work to push the pistons. In the process the internal…

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Q: An automobile engine provides 567 Joules of work to push the pistons. In this process the internal…

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Q: What is the work performed when a gas expands from 0.66 L to 2.33 L against an external pressure of…

A: We have been given initial volume, final volume and external pressure We have been asked the work…

Q: b) What is the change of enthalpy when 252 ml of methanol (density = 0.924 g/ml) are combusted to…

A: Given- Volume of methanol = 252 ml Density = 0.924 g/ml To find- Change in enthalpy of combustion…

Q: 8. The heat of combustion of propane gas is measured in a copper bomb calorimeter. The copper bomb…

A: Answer:The law of conservation of energy states that energy cannot be created noe destroyed. It can…

Q: A chemical reaction is run in which 648 Joules of heat are absorbed and the internal energy changes…

A: Since the change in internal energy ΔE is given by  ΔE = q + w where q = heat absorbed by the system…

Q: A chemical reaction is run in which 389 Joules of heat are generated and the internal energy changes…

A: Given  Q = -389 J (heat is generated) ΔU = -55 J Using first law of thermodynamics  ΔU= Q + W  W =…

Q: n heat would be released per gram of Al(s)?

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

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Q: 4. Methane burns in air to form carbon dioxide and water according to the following equation: CH +…

A: 1) When ΔH < 0, the reaction is Exothermic. When ΔH > 0, the reaction is Endothermic. 2)In…

Q: A chemist measures the energy change AH during the following reactic 2 Fe,03(s) → 4 FeO(s)+O½(g)…

A: if ∆H is positive it means heat is absorbed then the reaction will be endothermic.

Q: According to the following thermochemical equation, if 1.902 kg of NO2 is produced, how much heat is…

A: The thermochemical equation given as, => 2 NO (g) + O2 (g) ---> 2 NO2 (g)…

Q: Hydrazine, N2H41), is used in rocket fuels. The thermochemical equation for the combustion of…

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Q: An automobile engine provides 624 Joules of work to push the pistons. In this process the internal…

A: Calculate heat q for the engine ?

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: A gas expands and does work on the surroundings equal to 0.50 BTU. At the same time, it absorbs 0.21…

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Q: Calculate q whe

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Q: The oxidation of the sugar glucose, C6H12O6, is described by the following equation: C6 H12 O6(s) +…

A: (a)Amount of heat (in kilojoules) produced by the metabolism of 1.0 g of glucose is determined as…

Q: The molar heat capacity of silver is 25.35 J mol−1 ∘C−1. Find how much energy would it take to raise…

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Q: A 3.623 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, The weight of sample is 3.623 g. The given temperature values are 23.53 ˚C and 30.40 ˚C. The…

Q: net change in the internal energy

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Q: A chemical reaction is run in which 166 Joules of heat are generated and the internal energy changes…

A:

Q: A 3.971 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: The total heat can be calculated as,

Q: What happens to the heat capacity (CP) of a metal sample if its mass is doubled? Explain your answer…

A: Extensive properties are properties of a substance that depend on the amount or size of the sample.…

Q: Calculate the energy required to heat 623.0 g of ethanol from 0.1 °C to 18.8 °C. Assume the specific…

A: given, the mass of ethanol, m = 623.0 g initial temperature, T1 = 0.1 oC Final temperature, T2 =…

Q: "he combustion of fuel in a piston cylinder causes an internal energy change of -2.821E3 kJ. The…

A: According to firstaw of thermodynamics change is internal.energy is sum of heat change and work .

Q: A gas is compressed from 2.31 L down to 1.12 L at a pressure of 1.13 atm. If 51 J of heat is given…

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