Calculate the change in entropy (J/mol·K) for the surroundings for a reaction where ΔH° = 126.9 kJ/mol at 39.3°C. Report your answer to the tenths place and do not include units

Q: Calculate the change in the Gibbs free energy (ΔGorxn) in J for the decomposition of carbon…

A:

Q: (Q71) Consider the hydrogenation of ethene to form ethane that occurs according to the following…

A:

Q: 1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: Predict whether the entropy change of the system in N2 (g, 10 atm) —> N2 (g, 1atm) is positive or…

A: The entropy of a substance increases with its molecular weight and complexity and with temperature.…

Q: When a 2.00 g2.00 g sample of RbBrRbBr is dissolved in water in a calorimeter that has a total heat…

A: Given, Mass of sample RbBr = 2.00gram Total heat capacity = 0.779 KJ-1K-1 Temperature is decreased…

Q: 1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state…

A: Entropy of a system is the measure of randomness. Higher disorder the system, higher is the entropy.

Q: Which of the following statements best describes the entropy of water that freezes in a beaker? a.…

A: The correct option is:

Q: Which of the following statements regarding the Law of Thermodynamics is false? The entropy of the…

A: Thermodynamics studies the relation between heat, work, temperature, and energy. The laws of…

Q: What is the change in internal energy (delta E) for the system?

A:

Q: What is the entropy change when 307 J of energy is reversibly transferred to a sample of water at…

A:

Q: 11-12. The same quantity of energy is added to 25.0 g pieces of gold (molar heat capacity = 25.41…

A: Given data,Mass of Au=25gMass of Mg=25gMass of…

Q: Suppose we redefine the standard state as P = 2 atm. Find the new standard ΔGf​ values of each…

A: a). HCl(g) The standard state has P= 2 atm.

Q: what is the change in the enthalpy in kj/kg for the complete combustion of 39.0 g of fructose,…

A:

Q: What is the change in internal energy for each of the following situations? q = 7.9 J out of the…

A: The first law of thermodynamics says that total energy of the universe remains constant. Energy is…

Q: DeltaH=21 DeltaG=0.10115 Deltas=0.071 NaNO3 (s) → Na+ (aq) + NO3– (aq) 4. Looking at the chemical…

A: The given reaction is shown below. NaNO3s→Na+aq+NO3-aq

Q: Which of the following statements correctly describe the second law of thermodynamics? I. Heat will…

A: Second  law of thermodynamics

Q: Which of the following is not a state function? a. density b. heat c. free energy d.  entropy…

A: State functions only depend initial and final state  and not depends on path Examples of state…

Q: Predict whether the entropy change of the system in 2 H2 (g) + O2 (g) —> 2 H2O (l) is positive or…

A:

Q: For which of the following reactions will the entropy of the system decrease? CaCO3(s) → CaO(s) +…

A:

Q: Using enthalpies of formation (See the Supplemental Data), calculate ΔH° (in kJ) for the following…

A:

Q: Does

A: 1- If temperature is constant but pressure will changed then entropy is inversely proportional to…

Q: True or false?  For chemical reactions, when ∆G° for the reaction is less than ∆H° for the…

A: False

Q: Consider the decomposition of liquid benzene, C6H6(l), togaseous acetylene, C2H2(g):C6H6(l)…

A: a) C6H6(l) -----> 3 C2H2(g) ΔH = +630 kJ  the enthalpy change for the reverse reaction  3 C2H2(g)…

Q: Explain the reason that the conversion of liquid water to gaseous water has a positive change in…

A: Given statement is :  Explain the reason that the conversion of liquid water to gaseous water has…

Q: What mass of aluminum metal would absorb 250.0 kJ when it melted at its melting point? The molar…

A: One gram of aluminium metal absorbs 396.6 Joule heat.

Q: (What is meant by "enthalpy" change of + 124KJ 2 How would the following changes affect the…

A:

Q: At constant volume, the heat of combustion of a particular compound is –3639.0 kJ/mol. When 1.471 g…

A:

Q: When a 6.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity…

A: We have to calculate the molar heat of solution.

Q: 6) Consider H;0 going from the gas phase to liquid phase to solid phase. Describe the changes in…

A: In the vapor state, the gas phase of water, water molecules have the highest kinetic energy and this…

Q: Gibbs free energy in chemistry is symbolized G. It is related to the enthalpy (H) and entropy (S)…

A:

Q: Predict whether the entropy change of the system in each of the following is positive or negative.…

A: GIVEN:- Predict whether the entropy change of the system in each of the following is positive or…

Q: From your knowledge of microstates and the structure of liquid water, explain the difference in…

A: Finding: Microstates To find Structure of liquid water

Q: A student observed that, when 0.243 g of magnesium was added to 100.0 g of hydrochloric acid, the…

A: Many chemical reactions give off energy. Chemical reactions that release energy are called…

Q: How much work, w, must be done on a system to decrease its volume from 12.0 L to 3.0 L by exerting a…

A: w = P . ∆V P = 3.0 atm and ∆V = 12.0 - 3.0 = 9.0 L w = 3.0 x 9.0     = 27.00 L. atm

Q: For the oxidation of iron to form iron(III) oxide: 4Fe(s) + 3O2(g) ⟷⟷ 2Fe2O3(s)…

A: ΔSo = –549.73 J∙K–1 T = 298K ΔH = –824.2 kJ∙mol–1 = -824200 Jmol-1

Q: How much work, w, must be done on a system to decrease its volume from 12.0 L to 3.0L by exerting a…

A: If w id the work done the systemwork(w)=-Pe×∆vw= -pe×(vf-vi)If a gas compacts vf<vi and work is…

Q: Suppose that two systems, each composed of two particles repre- sented by circles, have 20 J of…

A: Given data: Two systems, each compound of two particles, represented by the circkes have 20 J of…

Q: Suppose that two systems, each composed of two particles rep- resented by circles, have 20 J of…

A: Entropy is a measure of the extent of energy dispersal, and it rises with the number of comparable…

Q: Consider the reaction: N2(g) +  F2(g) →  NF3(g)  , ΔH° = -249 kJ and ΔS° = -278 J/K   at 25°C…

A: We have to calculate ∆G∘ for the reaction and have to determine whether the equilibrium composition…

Q: Calculate the change in internal energy (ΔU) for a system that is giving off 25.0 kJ of heat and is…

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: When a 7.00 g sample of KCl is dissolved in water in a calorimeter that has a total heat capacity of…

A:

Q: Calculate the reaction enthalpy of this reaction under standard conditions: 2C2H6(g) + 7O2(g)——>…

A: Given, 2C2H6 (g) + 7O2 (g) ——> 4CO2 (g)+ 6H2O (l) Standard  enthalpy of formation of all the…

Q: When a 8.00 g8.00 g sample of RbBrRbBr is dissolved in water in a calorimeter that has a total heat…

A:

Q: Indicate whether each statement is true or false. If a system undergoes a reversible process, the…

A: Given: Reversible process is a process which can be reversed back to its initial state after…

Q: For the following reactions, indicate whether the entropy of the system increases, decreases, or…

A:

Q: Without doing any calculations or using Sf data, arrange each group in order of increasing entropy.…

A: Always a gaseous (vapor) substance of same material have highest entropy compare to its liquid and…

Q: Which of the following results in a decrease in the entropy of the system? Group of answer choices…

A: Since we know that Entropy depends upon on the number of moles of gas molecules on products side and…

Q: 1. The magnitude of any enthalpy change depends on the conditions of temperature, pressure and state…

A: Solutions-

Q: Ethylene glycol, used as a coolant in automotive engines, has a specific heat capacity of 2.42…

A:

Q: Combustion of glucose (CH0 is the main source of energy for animal cells: CH,0) + 60/g) → 6C0,(g) +…

A: The given data contains, ∆Greaction =-2872 kJ.Number of aminoacids=84