Cu2O (s) --> CuO (s) + Cu (s) Is this reaction spontaneous at all temperatures? If this reaction is not spontaneous at all temperatures, what is the lowest wherein the reaction will become spontaneous? with the change in enthalpy is 14.6 kJ/mol and the change in entropy is 66.8 J/mol K

Q: Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s)→ Na2CO3(s) + CO2(g) + H₂O(g)…

A:

Q: A chemical reaction has a standard entropy change, ΔSo, of -287.8 J/(molK) and a standard enthalpy…

A: The given data you have - ΔSo = -287.8 J/K-mol ΔHo =  -138.1 kJ/mol

Q: Using Thermochemical Data, calculate ΔS for the following reaction. Is entropy increasing or…

A: ANSWER IS

Q: A spontaneous process usually involves an increase in temperature (an exothermic reaction), yet when…

A: Solution- The reaction is favorable when it causes an enthalpy decrease and an increase in system…

Q: Calculate the temperature (K) at which a reaction becomes spontaneous when ΔS = 769.8 J/mol-K and ΔH…

A:

Q: For each reaction with ΔH = + 187 kJ/mol and ΔS = + 365 J/molK ,at what temperature at which the…

A: Given: ΔH = +187 KJ/mol or +187000 J/mol ΔS = +365 J/molK We have to calculate temperature(T) at…

Q: 2 H2(g) + O2(g) → 2 H2O(l) HCl(g) → H+(aq) + Cl-(aq) Na(s) + 1/2 Cl2(g) → NaCl(s) What is right?…

A:

Q: Consider the reaction:  H2S(g)+SO2(g)---> 3S(g)+2H2O(l) for which delta H is -233 kJ and delta S…

A: Given:

Q: Consider this reaction: N2 (s) + 2 02 (g)→ 2NO2 (g) AS° = -121.77 J/K.mol; AH° = %3! 66.36 kJ/mol…

A: From the given question it is given that, ΔSo < 0 ΔH0 > 0

Q: For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all…

A: When free energies (useful work) are estimated under standard conditions (1 atm pressure and 273.15…

Q: A process increases the entropy of the system by 128 J/mol K and absorbs 54 kJ/mol of heat from the…

A: Given: Change in entropy (∆S) = 128 J/mol•K Absorbed heat=54 kJ/mol =54×103 J/mol    To determine…

Q: Consider this reaction: 2HCI(aq) + NazCO3(s) → CO2(g) + H2O(1) + 2NACI(aq) AS° = 267.00J/K.mol; AH°…

A: Given: ΔSo > 0 ΔH < 0

Q: Zn(s) + 2HC1(aq) → ZnCl2 (aq) + H2 (g) + 153kJ For this reaction at 25°C, • Change in enthalpy: […

A: The reaction given is,

Q: 2 ClO2 (g)   +  2 TiCl4 (l)    →     2 TiO2 (s)   +   5 Cl2 (g)         Delta H =  – 343.8 kJ when…

A: Please have a look on the solutiion:

Q: For a certain reaction, ΔH = -35.4 kJ/mol and ΔS = -85.5 J/K mol. Is this reaction endothermic or…

A:

Q: C;H2 (g) +2 H2 (8) = CHs (g) The standard Gibb's free energy of formation values for CH2, H2, and…

A:

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

A: Q1. Since the reaction is endothermic, that means you have to provide heat during the reaction,…

Q: Polymer -->  Product and you determine that at a given temperature the reaction is spontaneous and…

A:

Q: Use the information given below to calculate the standard reaction free energy, ΔG°rxn (in kJ), for…

A:

Q: When heated, CaCO, decomposes into CaO and CO₂ according to the following equation: CaCO,(s)=CaO(s)+…

A: Given,CaCO3 (aq) + CO2 (g)

Q: A

A: We Will Choose Correct option

Q: In freezing a mole of liquid water at the freezing point; the enthalpy of fusion is 6.0lkJ/mol…

A: The enthalpy of fusion is 6.01 KJ/mol To determine : entropy of system , surrounding and universe

Q: The enthalpy change for a certain reaction is -209.4 kJ and the entropy change is 585.7 J/K.  What…

A:

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: TRUE OR FALSE 1. Lowering the temperature of the system will lead to an increase in entropy. 2.…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The enthalpy change for a reaction can be calculated using the formation enthalpies of the products…

A: Each chemical reaction is associated with the donation or acceptance of a certain amount of energy.…

Q: You are working in a lab and observing a reaction. If a reaction vessel is cold to touch and the…

A: A question about thermodynamics, which is to be accomplished.

Q: Calculate the free energy change for this reaction at 25 °C. Determine if the reaction is…

A:

Q: In chemical reactions, heat is either released or absorbed and entropy either increases or…

A: Answer: Relation between Gibbs free energy change, enthalpy change and entropy change is: ∆G=∆H-T∆S…

Q: Calculate the change in standard free energy for a reaction at 316.30 K; the change in standard…

A: The provided temperature (T)=316.30K change in standard molar enthalpy(∆H)= -95.40kJ/mol change in…

Q: Consider the reaction:  4 A (g) ------  2 B (s) +  3 C (g) + 20.5 kJ,    at what…

A:

Q: Consider a chemical reaction with a change in enthalpy of 845 kJ/mol and a change in entropy of…

A: Gibbs free energy, called G, incorporates enthalpy and entropy into a single value. The shift in…

Q: Use standard heats of formation (ΔHo) and standard entropies (ΔSo) to calculate ΔGo for the…

A:

Q: The enthalpy change for a certain reaction is -209.4 kJ and the entropy change is 585.7 J/K.  What…

A:

Q: Cl₂ is a stable diatomic molecule. It can be decomposed to form two Cl atoms as shown here: Cl₂(g) →…

A: Answer:Here:

Q: Heat is consumed to mold a plastic figurine. For this process, is the ΔH (change in enthalpy)…

A: "To get remaining parts solved please repost the complete question and mention the parts to be…

Q: Consider the reaction: NH4Cl (s) → NH3 (g) + HCl (g) ArS 94.6 J K-¹mol-¹ A,H= 175.98 kJ/mol a)…

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

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: Consider the reaction: CO(g) + Cl2(g)–→COC12(g) Using standard thermodynamic data at 298K, calculate…

A: Free energy change of a reaction is deltGo=[deltaGo products-deltaGoreactants ] KJ/mol

Q: A closed vessel of volume 2.1 L contains a mixture of neon and fluorine gas. The total pressure of…

A: Given,  Volume of the closed vessel = 2.1 L  Total pressure = 3.8 atm at 0°C  The mixture is heated…

Q: Ethanol  has a normal boiling point of 352 K, and its ΔHvap is 38.6 kJ/mol. Calculate the molar…

A: The molar entropy of ethanol can be calculated by  ΔSvap = ΔHvap / Tboiling point  where ΔHvap =…

Q: Which statement DOES NOT describe the entropy of a system in its molecular state?  Entropy changes…

A: The degree of randomness in a system is measured in terms of entropy. The higher the entropy greater…

Q: Determine the amount of free energy of the reaction at 25 ℃ represented by the equation below. Is…

A: ∆G° = ∆H° - T∆S°  So in this reaction first determine ∆H° and ∆S° then determine ∆G°  If ∆G° < 0…

Q: Spontaneous When entropy is positive and enthalpy is negative, a process is spontaneous. This means…

A: Answer: Relation between Gibbs free energy change, enthalpy change and entropy change is: ∆G=∆H-T∆S…