300.0 K is 7.64 x 10⁻⁴ and the Keq at 320.0 K is 5.23 x 10⁻⁴. Calculate the ∆H(dissolve) for oxygen solubility in water, in kJ/mol.

Q: What are the units of entropy and enthalpy?

A: Enthalpy is the amount energy absorbed or released in a process.Entropy is the measure of randomness…

Q: For the reaction below, the enthalpy change is ΔH = –566 kJ/mol. Increasing the temperature of the…

A: The given chemical reaction as follows,2CO(g)+O2(g)⇌2CO2(g)  : ∆H  =-566 kJmol We are asked what…

Q: Write the CAPITAL Letter of the correct A if both statements are true B if the 1st statement is…

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

Q: 1. Describe enthalpy with respect to free energy change.

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

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: 10. Explain enthalpy, entropy, and internal energy.

A: Enthalpy:-Enthalpy is the measurement of energy in a thermodynamic system. The quantity of enthalpy…

Q: An ice cube at 0 Celcius melts when placed inside a room at 22 Celcius. Based on the concepts of…

A: Melting of ice requires energy to melt. So it is an endothermic process. The process in which energy…

Q: 6. Enthalpy provides a quantitative measure of how much energy is spread out when something happens.…

A: Enthalpy is a state function which measures quantitatively the energy transferred after the reaction…

Q: Would each of the following changes increase, decrease, or have no effect on the number of…

A:

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 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: Thermochemistry invokes quite an array of physical quantities that are useful for considering…

A: In thermodynamics, the functions that are independent of the path are called state functions.…

Q: Does the entropy of a star increase or decrease as it radiates? Does the entropy of the space into…

A:

Q: Which of the following is a quantitative measure of disorder? a.Free Energy B.Enthalpy C.Entropy…

A: Which of the following is a quantitative measure of disorder?

Q: When 1942 J1942 J of heat energy is added to 41.9 g41.9 g of ethanol, C2H6O,C2⁢H6O, the temperature…

A: Using the relation Q = mCΔT we can find molar heat capacity of C2H6O.

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 species will have the greatest magnitude of change in Gibbs free energy due…

A: Gibbs free energy is the energy available for useful work to be done. Now as its given in the…

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

A:

Q: Explain how entropy relates to building and breaking of large molecules.

A: Given statement is :  Explain how entropy relates to building and breaking of large molecules.

Q: An ice cube at 0 C melts when placed inside a room at 22 C (295 K). Based on the concepts of…

A: We need to identify the concept of spontaneity behind melting of ice according to thermodynamics.

Q: Which of the following processes are exothermic?N2 (g) → 2N (g)H2O (l) → H2O (s)Cl2 (g) → 2Cl (g)2H2…

A:

Q: Identify the change in state that does NOT have an increase in entropy.   a water evaporating   b…

A: Entropy - Measure the randomness or disorderness of molecule  Solid to liquid, liquid to gases…

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 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: 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: 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: 5. Sodium acetate dissolves in water according to the following equation: NAC2H3O2 (s) Nat (ag) +…

A: Given process is :  NaC2H3O2 (s) -----> Na+(aq) +C2H3O2-(aq)

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: III of thermodynamics. Explain your law.

A:

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: Which of the following processes results in the largest decrease in Entropy? The heat of fusion of…

A: Entropy an be defined as the thermal energy per unit temperature that is unavailable for doing a…

Q: Which of the following statements define the third law of thermodynamics? O Process that requires…

A: The statement which defines the third law of thermodynamics is to be explained.     Third law of…

Q: The amount of energy available in a reaction to do work is known as: a. Entropy b. Enthalpy c.…

A:

Q: N2(g) + O2(g) + Cl2(g) ---------> 2 NOCl(g)        ΔH° = 103  kJ What is the standard enthalpy…

A: The answer to the following question is- Given  The reaction : Equation 1) N2(g) + O2(g) + Cl2(g)…

Q: Would each of the following changes increase, decrease, or have no effect on the number of…

A: Given changes, (a) Increase in temperature

Q: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: ∆S universe=0  ∆Grxn.  negative at higher temperatures, positive at lower temperatures

Q: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: for the given endothermic reaction, N2(g) + 2O2(g) →2NO2(g)

Q: How do enthalpy and entropy relate to each other? If enthalpy is negative, does that mean that…

A: To measure spontaneity, both the terms, enthalpy and entropy, cannot be used individually that is…

Q: When 5.89 g of a solid mixture composed of NH4CI and CaCl2 was dissolved in 100.0 mL of water, the…

A: Enthalpy of solution is the enthalpy change that takes place when a mol of substance is dissolved in…

Q: Explain Enthalpy and Entropy ? Show the Difference between them ?

A: Enthalpy and entropy are the thermodynamic properties of a system. They are one of the most…

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: Without doing any calculations, match the following thermodynamic properties with their appropriate…

A: Spontaneity of reaction is governed by its associated enthalpy change, entropy change and absolute…

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: 2. When 1.0 g of sodium nitrate was dissolved in 50.0 g of water in a calorimeter at 20.0°C, the…

A: q = mc∆T where q is heat, m is mass of the substance, c is specific heat of the substance and ∆T…

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

A: Solutions-

Q: TRUE OR FALSE  1. It is more convenient to use change in enthalpy, ΔH, as a criterion of…

A: 1. enthalpy and entropy can not be used alone as a spontaneity criterion. Thus, statement one is…

Q: (1) What are the thermodynamic quantities of a system that affect the amount and sign of the…

A:

Q: 50.0mL of 2.2 M HCl is combined with 50.0 mL of 2.0 M NaOH in a coffee-cup calorimeter. Calculate…

A: The formula required to calculate moles is as follows, Molarity = MolesVolume in…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.