sney+ | Stream all of D X Fall 2019 Final Exam SX Talks with Quesha - Goo ALEKS X A ALEKS-Jaquesha Jeffe X X (218) Writing à standar www-awu.aleks.com/alekscgi/x/Isl.exe/10 u-lgNslkr7j8P3jH-lQU6tR-XZxj_1SoekWMaP1As1fEhnCl79H4S3nt2nsUYU0J mxn Z8 sQ 2BczbMt leRDjAijBG QK5... C O THERMOCHEMISTRY Writing a standard formation reaction Write a balanced chemical equation for the standard formation reaction of solid potassium dichromate (K2Cr207) O-O ? X Expianation Check Term 2019 McGraw-Hill Education. All Rights Reserved. C & $ # 7 5 4 3

Q: ercise 6.101 Part A Use standard enthalpies of formation to calculate the standard change in…

A: It's a multiple part type question.   Given information, ∆H°f for H2O(s) = -291.8 kJ/mol Volume of…

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: Sign conventions for Heat (g) and Work (w) : The change in internal energy of a system can be…

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Q: Determine the temperature of the combustion product of 1 L of bioethanol if the heat from the…

A: The objective of this question is to show the determine the temperature of the combustion products.…

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: When 1 mole of Fe(s) reacts with HCI(aq) to form FeCl(s) and H2(g) according to the following…

A: Question belong to in Thermodynamics.  In this chemical reaction in the formation of product energy…

Q: What will be the effect on the calculated heat capacity of the styroball calorimeter if the test…

A: Heat capacity = Mass * Specific heat capacity * Temperature change

Q: Which of the following processes will increase the potential energy of the system? (You may select…

A: Potential energy of the system is the energy which can be converted to kinetic energy of a system by…

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: 1.74. What is the ratio of the populations of two energy states whose energies differ by 1000 J at…

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Q: 2.37. True or false: Any process for which AH is negative is exothermic. Explain your answer.

A: Enthalpy change (∆H) of a reaction is given by the formula  ∆H = [enthalpies of products] -…

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: 3.63. A spontaneous, endothermic chemical reaction mentioned at the beginning of this chapter was…

A: The given chemical reaction is Ba(OH)2.8H2O(s) + 2NH4SCN(s) Ba(SCN)2(s) + 2NH3(g) + 10H2O(l).Also,…

Q: A 136-lb student races up stairs with a vertical height of 4.8 m in 6.0 s to get to a class on the…

A: given: mass = 136 lb  mass in kg = (136 lb / 2.2 ) = 61.8 kg gravity g = 9.8 ms-2 time t = 6.0…

Q: you, I am not very familiar with the math, can you expand on how you solved the equation to get…

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Q: 5.137 Both glucose and fructose are simple sugars with the same molecular formula of C6H12O6.…

A: The number of moles of glucose in 2.0 g of glucose tablet is determined as follows.…

Q: Chapter 6 : Energy relationship in chemical rxn B Example : A 0.1375g sample solid of Mg (M.w=24.31)…

A: Given mass of Mg = 0.1375 g  Molar mass of Mg = 24.31 g/mole  Heat capacity of the calorimeter =…

Q: Which of the following are state functions? (i) energy, (ii) work, (iii) enthalpy, (iv) heat, (v)…

A: In thermodynamics, state function is a property of a system whose value depend only on the state of…

Q: Calculate q when a system does 41.68 J of work and its energy decreases by 67.72 J. Round your…

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Q: A chemist measures the energy change AH during the following reaction: CH,(9)+20,(9) →…

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Q: 2 The two distinguishable particles can each be in one of the two boxes. The energy of the system…

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Q: Hess's Law Applications: From the enthalpies of reaction H2 (g) + F2 (g) → 2 HF (g) C(s) + F2 (g) →…

A: To solve this question, we would use Hess's law.   We would arrange the given three thermodynamic…

Q: a. In our experiment, we assumed that the heat flow in to and out of the walls of the calorimeter…

A: We have find out the answer.

Q: When 2 moles of HBr(g) react with Cl2(g) to form HCl(g) and Br2(g) according to the following…

A: The reaction taking place is given as, => 2 HBr (g) + Cl2 (g) → 2 HCl (g) + Br2 (g)

Q: AH

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Q: 150 joules of heat was absorbed by the surounding as 150 joules of work was done by the system.…

A: Given, heat is absorbed by the surrounding 150 Jules

Q: For a chemical equilibrium with AS rxn = -12.4 J/K and AH = -5.7 kJ, the equilibrium is spontaneous…

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Q: Briefly describe the contributions of Walter Nernst, T. W. Richard's, Max Planck and G. N. Lewis in…

A: The third law was given by Walter Nernst. It states that the entropy of a system at absolute zero is…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: Specific heat capacity of water: 4.182 J/(g oC) Specific heat capacity of copper: 0.39 J/(g oC)…

Q: Q11.51 O Homework Answered Which of the following regions " to "V" indicate the following…

A: This is the heating curve.

Q: Thermochemistry is the study of the heat changes that occur during chemical reactions and physical…

A: Here is your answer

Q: Write the balanced chemical equation for the combustion of methane, CH,(g), to give carbon dioxide…

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Q: calculate the enthalpy change of formation of propane (C3H8

A: Change in enthalpy of reaction is the difference between sum of enthalpies of product and reactants.…

Q: Write an expression for the enthalpy change of the system AHsys in terms of the energy change of the…

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Q: What are the signs for q and w if a system absorbs 180 J of heat energy while expanding against…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: T22 Repeat the previous question but give the answer in Joules. If 15.2 L of gas expands to 45.8 L,…

A: Interpretation -  To determine the work ( in J ) when 15.2L of gas expands to 45.8L , against a…

Q: Consider the table. Metal Tm (K) AĦfus (kJ/mol) |Tp (K) AH vap (kJ/mol) Li 454 2.99 1615 134.7 Na…

A: Given information,

Q: Hydrogen cyanide is a highly poisonous, volatile liquid. It can be prepared by the reaction CH4(g) +…

A: The first step is to identify the thermochemical equations given in the problem. These equations…

Q: 2. You have a two level system and three particles that occupy this system. The total energy is not…

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Q: Calculate the change in energy if q= .761kJ and w= -840J

A: Step 1) The change in the energy is given by amount of work of heat in and out of the surroundings.…

Q: What is the connection between Hess's law and the fact that enthalphy is a state function?

A: Chemical thermodynamics is branch of chemistry in which we deal amount of heat evolved or absorbed…