1.CalculateΔEforeachofthefollowingcases: a.q=+51kJ;w=-15kJ b.q=+100kJ;w=-65kJ c.q=-65kJ;w=-20kJ dd. In which of these cases do the surroundings do work on the system?

Q: 1Latm 1000S 3. Estimate the work done by a reaction of 25.0 g of (NH4)2C12O7 as follows at 25 °C and…

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Q: A 50.0-mL sample of a 1.00 M solution of is mixed with 50.0 mL of 2.00 M KOH in a calorimeter. The…

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Q: li 6.0 р 4 K. 2 in 4. 9. 8. 6. IIO what is the final temperature of the system (c of copper = 0.387…

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Q: Calculate ASurr at 298 K. uns ZnS(s) + 202(g) ZNSO4(s) AH°=-777 kJ O ASsur = +114 kJ/K %3D O ASsurr…

A: Answer: option c. ∆Ssurr = +2.61 kJ/K

Q: 8. Calculate the E for a system undergoing an exothermic process in which 10.3 kJ of heat flows and…

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Q: Calculate the change in the internal energy (AU) of a gas that absorbs heat of 140 J from the…

A: We have to predict the ∆U.

Q: Consider the reaction B(s) + O2(g)→B2O3(s), AH = -1270kJ What will AH be for the reaction if it is…

A: Interpretation - To determine the ∆H for the reversed reaction.    Concept- Enthalpy change for a…

Q: 3A HacHon releaser 615 calores Of heat ond perfommJ 355 Joules 515 calones of WORK HS SURROUndings…

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Q: The value of AE for a system that performs 151 k) of work on its surroundings and loses 79 kJ of…

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Q: Determine qsoln for each trial and report in units of joules. Specific Heat= 4.02

A: qsolution Trial 1 5013.22 J Trial 2 5998.40 J Trial 3 5469.93 J

Q: When 3.0 mol 0 2(g) is heated at a constant pressureof 3.25 atm. its temperature increases from 260…

A: The molar heat capacity indicates the amount of heat which is required to raise the temperature of 1…

Q: How much heat (KJ) is required to convert 3.12 moles of liquid benzene at 75.1oC to gaseous benzene…

A: According to the Hess's law, enthalpy change in the process is equal to the sum of all the…

Q: When 7.04 g of potassium sulfate (K2SO4) is dissolved in 114 g of water in a styrofoam calorimeter…

A: The q for water in given calorimeter is calculated by using following relation.

Q: Find ?Hrxn for ZnS(s) + 3/2O2(g) →ZnO(s) + SO2(g) Using the thermodynamic data below Zn(s) +…

A: Reverse equation 2 and add all three equation to get required equation.

Q: 1 mole of an ideal gas has a volume of 102m3 and a temperature of 290K . Its volume is compressed to…

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Q: What quantity of energy is needed to heat a 1.00-mole sample of H20 from - 34.0°C to 120.0°C? State…

A: Mass of one mole of water = 18 g Amount of energy required to raise the temperature of water from…

Q: Which of the following which is/are true about the internal energy, E?      (i)    E = q + w…

A: True statement of above is

Q: Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) ΔH° = ??? kJ Given the…

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Q: A certain hydrocarbon of the molecular formula C,H2, has a standard enthalpy of formation AH, =…

A: For the combustion reaction, the chemical equation is shown by equation (1) and the value for x is…

Q: For the 1st image please answer question 2d and 2e! Show the work for them! And the answer for 2d is…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: 1. A 45.0 kg chunk of metal (specific heat 0.300 1/gC) initially at 25.0°C absorbs 122,000 ) of…

A: We can calculate the final temperature from the given formula  q = m × C × (Tfinal - Tinitial) Where…

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: Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) AH° = ??? kJ Given the…

A: The reactions given are, 1) C2H2 (g) + 5/2 O2 (g) -------> 2 CO2 (g) + H2O (l)…

Q: T30 A system loses 18.3 kJ of heat and has 33.8 kJ of work done on it. What is the change in…

A: We know that  From first law of thermodynamics ∆E = q + W ∆E = change in internal energy q = Heat W…

Q: A quantity of 2.00 ×102 mL of 0.521 M HCl is mixed with 2.00 ×102 mL of 0.261 M Ba(OH)2 in a…

A: The neutralization reaction may be described as the reaction in which the reaction between the acid…

Q: In this experiment, we are able to indirectly determine the heat lost by a hot object by determining…

A: Answer: Since, there is no loss of heat, due to external factors, is mentioned in the problem…

Q: 16. Given the following set of reaction data, C(s) + O2(8) → CO,(8) 2CO(g) +O2(g) 2H2 (8) + O2(g) AH…

A: C(s) +O2 ---> CO2               ∆H = -393.5 kj/mol  2CO + O2 --> 2CO2             ∆H = -566.0…

Q: 8g of alcohol is burned while heating 200 gr of water from 20°C to 80°C on a Bunsen burner. What…

A: Given: mass of water = 200 g Initial temperature of water = 20 oC Final temperature of water = 80 oC…

Q: Calculate ∆E for each of the following  a. q=-47 kj, w=+88kj b. q=+82 kj, w=-47kj c. Q=+47 kj, w=0…

A: First law of thermodynamics. It stated that energy of an system neither be created and nor be…

Q: From the enthalpies of reaction2 C(s) + O2(g)----->2 CO(g) ΔH = -221.0 kJ2 C(s) + O2(g) + 4…

A: Given:

Q: 16. Given the following set of reaction data, C(s) +O2(g) → CO2(8) → 2CO2(8) AH = -393.5 kJ mol…

A: Given  C(s) + O2(g) --------> CO2(g).   ∆H  = -393.5 kJmol-1  2CO(g) + O2(g) -----> 2CO2(g) ∆H…

Q: Use the data given to calculate the value of ΔG°rxn at 25°C for the reaction given below. ΔG°f for…

A: ΔG°f for CO(g) is −137.16 kJ/mol. C(graphite) + 1/2 O2(g) CO(g)  ∆G° rxn = ∆G°f product - ∆G f…

Q: 7. The heat evolved from the combustion of 0.94g ethanol raises the temperature of 250 cm water…

A: All the details are explained in handwritten solution.

Q: kJ. The value of AE for a system that performs 139 kJ of work on its surroundings and gains 54 kJ of…

A: according to first law of thermodynamics      ∆E = q+ W

Q: What mass of ethanol (M, = 46.1) will need to be burned completely to raise the temperature of 1.00…

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Q: 1. Calculate AE for each of the following cases: a. q=+51 kJ; w = -15 kJ b. q=+100 kJ; w=-65 kJ c. q…

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Q: A 0.75 g sample of KCl is added to 50.0 g of H20 in a Styrofoam cup and stirred until it dissolves.…

A: Given that: Mass of KCl = 0.75 g Mass of water = 50.0 g Initial temperature is 26.0oC Heat of the…

Q: 13. (a) How much heat wih be evolved or absorbed in the solution of 2 moles of H,SO,(1) in a very…

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Q: 223 Calculate the change internal 122 energy (AU) for a system that is -23 giving off 45.0 kJ of…

A: The change in internal energy of a system is given below

Q: Material: Block Mass: Copper |5.0 g 10.0 g Heating Duration: 2 s Heat T initial Reset I final 100 J…

A: Given that: Mass of copper block (m) = 5.0 g Heat (q) = 100 J Change in temperature (∆T) = 71.9°C -…

Q: From the enthalpies of reactionH2(g) + F2(g)-----> 2 HF(g) ΔH = -537 kJC(s) + 2 F2(g)------>…

A: Change in enthalpy of the reaction is the heat given our ar absorbed by the reaction. It is usually…

Q: Calculate the change internal energy (ΔE) for a system that is absorbing 1650.1 kJ of heat and is…

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Q: W(g) + X(g) ⟶ WX(g) ΔH = +40 kJ does heat flow into the sytem or out of the system or can't we…

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Q: A where A is V? A process happens along the following path on the p-V diagram. p= a constant. Write…

A: Given expression is  p= A/V2 Use relation between work and volume

Q: Calculate the standard enthalpies of combustion at 25ᵒC  (a) C4H8(g) + H2(g) ---> C4H10(g)…

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Q: I2(g) + Cl2(g) ⇌ 2 ICl(g) Calculate ΔGrxn in kJ at 25°C from the following ΔG°f values. ΔG°f (I2) =…

A: Given information: ΔG°f (I2) = 62.42 kJ/mol ΔG°f (Cl2) = 0 kJ/mol ΔG°f (ICl) = -5.52 kJ/mol We have…

Q: From the following data at 25°C: H2(g) + Cl2 ---> 2 HCl(g); ΔH° = -185 kJ 2 H2(g) + O2(g) ---> 2…

A: The given reactions are:Reaction 1:H2(g) + Cl2 (g) → 2 HCl (g)                    ∆H1= -185…