The ΔE of a system that absorbs 184 J of heat from the surroundings and has 42 J of work done on the system is ________ .

Q: How much heat is required to raise the temperature of a 1.15 kg piece of copper metal from 25.0 °C…

A: Given :-  Mass of Copper metal = m = 1.15 kg = 1150 g  Initial temperature of Copper metal = Ti =…

Q: change in a system occurs such that 15.1 J of work is done by the surroundings and 40.1 J of heat…

A: Given; The work done on the system, (W) = 15.1 J. The heat or enthalpy of the system, (H) = 40.1 J.…

Q: Calculate (a) q when a system does 55 J of work and its energy decreases by 68 J and (b) AE for a…

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Q: A small statue, made of an unknown metal, weighs 700 g. This statue at room temperature (27.00° C)…

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Q: A gas absorbs 32.5 KJ of heat when 18.2 kJ of work was done on it.Calculate the change in internal…

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Q: What mass of butane in grams is necessary to produce 1.5 * 103 kJ of heat? What mass of CO2 is…

A: The mass of butane (in grams) and the mass of carbon dioxide produced has to be calculated. Given…

Q: 5.114 A 3.52-g sample of ammonium nitrate (NH4NO3)was added to 80.0 mL of water in a…

A: Given that : Mass of ammonium nitrate = 3.52g Mass of water = 80.0mL = 80.0g Change in temperature…

Q: If a system has 5.00 x 10° kcal of work done to it, and releases 5.00 x 10' kJ of heat into its…

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Work…

Q: A reaction releases 173 J of energy while doing 42 J of work. Determine the change in internal…

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Q: A system does 566 kJ of work and loses 216 kJ of heat to the surroundings. What is the change in…

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Q: The change in internal energy of a system is +10.0 J and the system acquires 15 J of heat. How much…

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Q: Consider the reaction: C,H,OH) + 30, (g) →2CO,(g)+3H,01), AH = -1.37 x 10° kJ When a 21.1-g sample…

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Q: A chemical system produces 155 kJ of heat and does 22 kJ of work. What is ΔE for the surroundings?a)…

A: In order to solve this question, we will use the first law of thermodynamics which states that…

Q: An electric battery is charged by supplying 250 kJ of energy to it as electrical work, but in the…

A: Answer:- This question is answered by using the simple concept of calculation of change in the…

Q: How much heat is required to raise the temperature of a 75.0 gram sample of Titanium from 46.OC to…

A: The required amount of heat to increase the temperature of a compound can be determined by the…

Q: If the same amount of energy in the form of heat is added to 19.5 g samples of each of the metals…

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Q: If a system has 375 kcal of work done to it, and releases 5.00 x 10 kJ of heat into its…

A: Given is Work done on system  w = 375 kcal = 1569 kJ  [since 1cal = 4.184 J ] Heat released by…

Q: A certain closed system absorbs 150 J of heat and does 210 J of work. Which of the following about…

A: Given: Work done by the system = 210 J And heat absorbed by the system = 150 J

Q: 5.04 x 10-3 mole of a compound is added to 41.0 g of water in a styrofoam cup and stirred until it…

A: Given,Mass of water = 41.0g.Temperature change = 23.4600C – 23.4200C…

Q: Determine the efficiency of a camp stove given the following data: mass of propane burned = 4.48 g…

A: Interpretation- We have to determine the effciency of a camp stove on the basis of data as given…

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: The following two reactions are known: N2(g) + O2(g) -> 2NO(g) AH = +180.50 kJ N2(g) + 202(g) ---> A…

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Q: How much energy is required to change the temperature of 21.5 g Cu from 27.0 °C to 88.1 °C? The…

A: The weight of copper is 21.5 g. The given temperature values are 27.0 ˚C and 88.1 ˚C. The constant…

Q: In an experiment, 30.0 g of metal was heated to 98.0°C and then quickly transferred to 50.0 g of…

A: The heat capacity of the metal is to be calculated.

Q: If a system has 225 kcal of work done to it, and releases 5.00 x 102 kJ of heat into its…

A: Given,  A system has 225 KCal of work done to it and it releases 5.00×102 KJ of heat the internal…

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: A 75.1g piece of an unknown metal is heated up 45.2 degree c when given 2945 j of heat what is the…

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Q: 59.8 J was required to raise the temperature of 25.0 g of ethylene glycol by 1.00 K. Calculate the…

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Q: If a system has 375 kcal of work done to it, and releases 5.00 x 10² kJ of heat into its…

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Q: How much energy is lost when 50 g of iron cools from 45°C to 15°C? (specific heat capacity of iron =…

A: The relation between the amount of heat gained or lost (q) by a metal in a chemical process and the…

Q: A system absorbs 21.6 kJ of heat while performing 6.9 kJ of work on the surroundings. If the initial…

A: According to 1st law of thermodynamics:-∆u=q+wwhere,∆u= cange in internal energyq= heat given to the…

Q: When 1 mol of a fuel is burned at constant pressure, it produces 3455 kJ of heat and does 12 kJ of…

A: Delta E = q + w  where Delta E = change in internal energy  q = heat , w = workdone

Q: absorbs 1.357E3 J of heat. The final temperature of the sand is 6.7E1 °C. What is the mass (in g) of…

A: Given: Initial temperature = 2.24E1 °C Final temperature = 6.7E1 °C Amount of heat absorbed =…

Q: What is the ΔE for a system which has the following two steps: Step 1: The system absorbs 60 J of…

A: We are given with heat absorbed or released and the work is done on or by the system which proceeds…

Q: A gaseous system has 71 J of work done on it by surroundings and increases its internal energy by 69…

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Q: a system produces 123.0 kJ of heat and does 45.0 kJ of work on the surroundings, what is the ∆E for…

A: First law of thermodynamics can be written as  dQ=dE-dWwheredQ=heatdE=internal energydW=work done…

Q: A system gains 20.4 J of internal energy while doing 30.0 J of work. Does heat enter or escape from…

A: From first Law of Thermodynamics , the total change in internal energy of the system can be…

Q: You discover a new substance and wish to determine its specific heat capacity. Your sample weighs…

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Q: Delta E for a system is 27kJ. If 175kJ of work was done on the system, how much heat was released?

A: Given: Work done is 175 kJ. ∆E of the system is 27 kJ. To find: Amount of heat released.

Q: A) What is the value of ∆G° for combustion of ethanol? C2H5OH(l) + 3O2(g) --> 2CO2(g) + 3H2O(l)…

A: A] To find out the value of ∆G° for combustion of ethanol Given reaction: Calculate the value of…

Q: Calculate (a) q when a system does 43 J of work and its energy decreases by 70. J and (b) AE for a…

A: A) given:  Work done = 43 J  Energy decreases by = 70 J  B) Heat released = 36 J  Work done = 107 J

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.88 kg sample…

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Q: If a system has 5.00×102 kcal5.00×102 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ…

A: Given Data : Work done (w) = 5.00 × 102 kcal heat (q) = 5.00 × 102 kJ

Q: In a certain process, 400 J of heat is added to a system and the system simultaneously does 100 J of…

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Q: How much energy (in kJ) is required to change the temperature of 1.00 kg Fe from 25.0 °C to 1515 °C?…

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

Q: An 80 g sample of gas is heated from 25 C to 225 C. During this process, 346 J of work was done by…

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Q: A 23.0 gram sample of an alloy was heated to 100.00 °C and dropped into a beaker containing 92 grams…

A: Neglecting heat loss to the room and heat capacity of the beaker,  Heat losses by the alloy = heat…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: The heat of dissolution of MgCl2=heat absorbed by calorimeter+Heat absorbed by the solution.…

Q: TReferences) A 19.5 g piece of lead was heated to 97.5 °C in boiling water and then dropped into a…

A: Given : mass of lead = 19.5 g Initial temperature of lead = 97.5 oC Mass of water = 30.7 g Initial…

Q: Calculate ΔE for a system that absorbs 506.0  kJ of heat from its surroundings and does 379.0  kJ of…

A: It is a given that a system absorbs 506 kJ of heat and the system does 379 kJ of work on the…