Exothermic reactions _________. Group of answer choices release heat to the surroundings. lose free energy to the surroundings. are always spontaneous. are always spontaneous and lose free energy to the surroundings

Q: . Whenever something happens, enthalpy offers a quantitative estimate of how much energy is pread…

A: Thermodynamics is the relationship between heat, work, energy and temperatur.  In thermodynamics,…

Q: Match the thermodynamic property with its description. ____ heat transfer during a chemical process…

A: Entropy tells the randomness of particles.

Q: inside a calorimeter is 100 g of water at 39.8 ºC. A 10 g object at 50 ºC is placed inside of a…

A: Mass of water, m=100 g  The initial temperature of water=39.8 ºC Final temperature=40ºC Change in…

Q: A reversible process is one that: I. It is spontaneous in both directions. ii. It happens without…

A:

Q: 11. A process that gains or accepts energy as it takes place is a(n) a. exergonic process b.…

A: A reaction in which free energy is released is called an exergonic reaction. In this Gibbs free…

Q: How does the entropy of the surroundings change during an exothermic reaction? An endothermic…

A: Solution- Entropy of surrounding will increase during an exothermic reaction because heat is…

Q: A student dissolves 12.3 g of ammonium nitrate (NH, NO,) in 300. g of water in a well-insulated open…

A:

Q: 26) Which statement is true?gikuprakto A) Spontaneous changes are always accompanied by an increase…

A:

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: The spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy change…

Q: Consider the reaction H2(g) + Cl2(g) 2HCI(g) AH = -384.6 kJ/mol. If 3 moles of H2 react with 3 moles…

A: Given data H2(g) + Cl2(g) → 2 HCl(g)     ∆H=-384.6 KJ/mole Number of H2 mole react = 3 mole Number…

Q: A test tube containing a piece of wax is warmed in an oil bath until the wax melts. The test tube is…

A: A multiple choice question based on chemical thermodynamics that is to be accomplished.

Q: Using the Second Law to predict spontaneous change Read the descriptions of physical or chemical…

A: The given problem is based on the spontaneity of physical or chemical change.

Q: How is enthalpy related to the spontaneity of a reaction? A. AH does not affect spontaneity. B. AH0…

A:

Q: What mass of oxygen is consumed when 285.5 kJ of energy is evolved from the combustion of a mixture…

A: Consider the given balanced reaction as;                          H2 g + 12 O2 g → H2O l…

Q: Using the following data reactions: DH° (kJ) H2(g) + Cl2(g) ® 2HCI(g) -184 H2(g) ® 2H(g) Cl2g) ®…

A: Bond energy is defined as the energy required to separate an isolated molecule (i.e., in gas phase)…

Q: (a) Obtain the standard combustion enthalpy [kJ / mol] of methylamine at 25 °C. However, it is…

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

Q: All changes saved 1. A glass of ice water is placed on a table on a hot afternoon. Condensation…

A: When ice is taken in a glass kept at the table on a hot afternoon, the condensation of water vapour…

Q: ect one: True False

A: As we know,  exothermic reactions are reactions in which heat is evolved to surroundings. So,…

Q: 4. A helium-filled balloon spontaneously deflates overnight as He atoms diffuse through the wall of…

A: As bartleby rule I can answer only 1 question please post questions separately. Please don't des…

Q: Most automobile engines are cooled by water circulating through them and a radiator. However, the…

A: The cooling capacity of a material depends on its specific heat capacity value. Higher the specific…

Q: Select the CORRECT function of a calorimeter.

A: Calorimeter : It is an object used for calorimetry i.e heat measuring devices Types of…

Q: Read the descriptions of physical or chemical changes in the table below. Then decide whether the…

A: Thermodynamics is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A reaction is both endergonic and exothermic. Which ONE of the following statements must be TRUE? A…

A: Endergonic reactions are reactions which need free energy to proceed. Exothermic reaction is…

Q: Change Is this change spontaneous? O Yes. A solid precipitates from a solution, releasing heat as it…

A:

Q: 2. The muscles in our bodies work similar to that of a fuel cell, by metabolizing sugar (glucose) to…

A: Given: standard enthalpy of formation of glucose (s) = -1273.3kJ/mol standard enthalpy of formation…

Q: A reversible process is one that __________.   Group of answer choices 1) must be carried out at…

A:

Q: 20. Thermal equilibrium is reached when energy moves from the substance with lower energy to higher…

A: To explain: Thermal equilibrium.

Q: what is entropy?

A: Entropy(S)- Entropy is a thermodynamic property. Entropy determines spontaneity of process.…

Q: .You now have the enthalpies of reaction for the following reactions: CaCO3 (s) + 2HCl(aq)->CaCl2…

A: Given : CaCO3 (s) + 2HCl(aq)->CaCl2 (aq) + CO2 (g) + H2O(l)    CaO(s) + 2HCl(aq)->CaCl2(aq) +…

Q: Part B A mole of X reacts at a constant pressure of 43.6 bar via the reaction X(g) +4Y(g)→2Z(g), AH®…

A: Part A  Total energy of the system at constant pressure depends upon the heat absorbed by the system…

Q: 1ll 111 Sose the answers from the box. energy work internal energY increased sum 1. The first law of…

A: Solution: 1) The first law of thermodynamics applies the conservation of              ENERGY…

Q: TRUE OR FALSE Any spontaneous process is reversible.

A: Spontaneous process means the process which will occur without any external force or something like…

Q: 20.) Calculate for the heat evolved in one mole of glucose (180.56 g/mol) if 3.00 g was ignited in a…

A: Heat evolved at constant volume = C × ΔT × mol-1  C = Heat capacity  ΔT  = change in temperature…

Q: Change A chemical reaction between two liquids creates gaseous products. An exothermic chemical…

A: Spontaneity of the reaction can be decided on the basis of the value of Gibbs free energy change and…

Q: Which of the following parameters was held constant in the Styrofoam calorimetry experiment?…

A: Given: Styrofoam calorimetry experiment.

Q: ecall the definition/formula for work. 1. If you are performing work on an object, what must you be…

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

Q: 7. A 4.82 g sample of iron is heated to 84.3 °C. A 1.25 g sample of gold is heated to 95.1 °C. Both…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: 1.) The enthalpy of formation of BaCl2(s) is -858.6 kJ/mol, which of the following st

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: 4. The second law of thermodynamics states that A. the total energy change of the universe is always…

A: 4. The second law of thermodynamics states that:

Q: .The internal energy of a system when its temperature raised .A Decreases .B Increases .C Does not…

A: Internal energy of a system is the sum of kinetic energies of all of its constituent particle and…

Q: Which of the following circumstances will result in a reaction that is spontaneous only at low…

A: Spontaneity is determined by Gibb's free energy change. ∆G < 0 for spontaneous reaction. Formula…