endothermic reaction can be spontaneous if accompanied by a negative change in entropy.

Q: Calculate the value of Kc for the reaction: PCl5 (g)                PCl3 (g)   +    Cl2 (g)…

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Q: chapter 12:  16) The following reaction has these standard thermodynamic parameters: ΔHºrxn =…

A: Given;  ΔHºrxn = –32.6 kJ/mol.  ΔSºrxn = –63.8 J(mol •  K). C(g)+D(g)--->E(g).

Q: Determine the standard enthalpy change, entropy change, and free energy change for the conversion of…

A: The given process can be represented as follows, The standard enthalpy change for the reaction can…

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: 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: How can a system or chemical reaction have a negative entropy change and be spontaneous?

A: Chemical reaction:

Q: 6. Calculate AG for the combustion of propane. C3H8(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) C3H8(g) -24.5…

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Q: Surrounding Reaction A Reaction B Temperature Initial Temp 25.1°C 25.1°C Final Temp 30.2°C 20.0°C…

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Q: Predict whether the entropy of the following reaction will increase or decrease. Explain why you…

A: If in the reaction, all the species present are in only gaseous state, then entropy can be related…

Q: Consider the reaction: CaCO3(s) ↔ CaO(s) + CO2(g) The reaction enthalpy and entropy are: ΔHo rx =…

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Q: Which of the following would be expected to have positive entropy change?   Cooling of nitrogen…

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

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

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Q: ) Complete A and B to move on. a.) Write the complete, balanced chemical equation for the following…

A: A) Complete combustion of Hexanol- Unbalanced Chemical Reaction - C6H11OH (l)  +  O2 (g) → CO2 (g) +…

Q: What is Gibbs free energy, and what is ΔG for a reaction, and what does it mean if ΔG is positive,…

A: Gibbs free energy : It is defined as the maximum reversible non-PV work that can be obtained from…

Q: All the following involve an increase in entropy except   most endothermic reactions   sublimation…

A: Entropy is a thermodynamic term. It is the measure of disorder or randomness in a system.  If the…

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

A: Spontaniety of a reaction is decided by ∆G value(Gibbs free energy)  ∆G = ∆H - T∆S Where ∆H is the…

Q: The reaction 4AI (s) + 302 (g)→ 2 Al203 (s) AH° = -3351 kJ wwww. is and therefore heat is by the…

A: An exothermic reaction is reaction for which the overall standard enthalpy change is negative (…

Q: A chemical reaction is spontaneous

A: A spontaneous reaction occurs when favorable conditions allow for the production of products,…

Q: Does entropy increase or decrease in the following process? N2 + 3H2 → 2 NH3

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Q: In order to be a spontaneous reaction, what has to be true about Gibbs Free Energy?

A: Gibbs free energy of any reaction is defined as the maximum amount of reversible work that may be…

Q: What is entropy, and what is ΔS for a reaction, and what does it mean if ΔS is positive or negative?

A: Answer  The measurement of randomness is called entropy, entropy…