predict the sign of AH

Q: Find ΔS° for the formation of Cu2O(s) from its elements.

A: The entropy of a reaction is a thermodynamic property that helps in determining the spontaneity of…

Q: Determine the Sign of #H?

A: Answer Sign of H for a reaction

Q: following reaction. Ce) + 2HaG) → CH4(G) For which AH° and AS° for the reaction are -74.85 kJ/mol…

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Q: 16. 22. Indicate the signs of the thermodynamic quantities for the following: ΔΗ AS AG a. a candle…

A: A branch of chemistry that deal with heat and other forms of energy is known as thermodynamics.…

Q: Predict the sign of ΔG for the following reaction conditions without using specific numbers:…

A: When the change occurs in the system, surroundings, and universe then automatically the value of…

Q: Predict the signs of ΔH and ΔS for this reaction. Explainyour choice.

A: Given diagram,

Q: Predict (do not calculate) the sign of AS°for the following reaction. CO(g) + H20(g) -. CO2(g) +…

A: INTRODUCTION: Entropy is defined as the randomness or disorderness in the system.It may increase by…

Q: How is the magnitude of K related to the sign of ΔH ?

A: K is equilibrium constant of a particular reaction while ΔH  is change in enthalpy of reaction. For…

Q: For the following reaction at 25°C I2(g) + Cl2(g) 2IC1 (g) Ap° = -26.9 kJ and As° - 11.3 J/K.…

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Q: For the evaporation of water during perspiration (process of sweating) on a hot, dry day, (In this…

A: Answer - The correct option is (A) Evaporation - Evaporation is a type of vaporization that occurs…

Q: Enter your answer in the provided box. Calculate AG for the following reaction at 25°C: H₂O() →…

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Q: Calculate AS° for the unbalanced chemical reaction given below: + Cuo (s) - -Cu (s) + _H20O 5. _H2…

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Q: 1) Sodium reacts violently with water according to the equation: 2 Na(s) + 2 H20(1) - 2 NaOH(aq) +…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: Without using the value of So, predict the sign for a) 2K(s) + F2(g) → 2KF(g) b) NaClO3(s) → Na+(aq)…

A: Entropy is the measurement of randomness or disorder. As the disorder or randomness increases, the…

Q: 5.59 What is meant by the standard-state condition?

A: Standard-state condition is a term used in chemistry for gases, liquids be it a substance which is…

Q: Predict the sign of AS and then calculate AS for each of the following reactions. (This problem…

A: To predict the sign of entropy We need to remember some easy rule - 1) Entropy at gases state >…

Q: Predict the sign for B. AS° is negative AS° is & 0 C. AS° is positive

A: If entropy increases, then ΔSo is positive.   If entropy decreases, then ΔSo is negative.  Entropy…

Q: Calculate AG° for a reaction at 25°C when Keq = 5.0. %3D

A: Given data contains, Equilibrium constant is 5.0. Temperature is 25°C=298 K

Q: 2. Balance each equation, predict the sign of ASºn if pessible, and calculate its value at 25°C: (a)…

A: Interpretation: We have to balance and predict the entropy value for the given reactions.

Q: 7. Determine AH° for the following reaction: 2S(s) + 302(g) ---> 2SO3(g) AH°=? Given: SO2{g) --->…

A: 7) Given, a) SO2(g) ➝ S(s) + O2(g)  ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g) ∆H° = -197.8 kJ…

Q: Calculate AG° for the following reaction at 25.0 °C. 2Au (s) + 3Sn4+ 3Sn2+ (aq) + 2AU3+ (aq) Report…

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Q: Lead(II) oxide can be reduced to form elemental lead through the reaction: PbO(s) + C(s) → Pb(s) +…

A: Interpretation -  To determine the the enthalpy of the reaction at 25oC where lead oxide can be…

Q: For which of the following reactions, if any, is ΔS ° positive?

A: Exothermic Reaction :  When a chemical change takes place with the liberation of heat energy , then…

Q: What is AH° for the following reaction? 2C,H>(g) + 50,(g) → 4CO2(g) + 2H20(1) Substance AH®,…

A: ∆H0 for the reaction will be 2 C2H2(g) + 5 O2(g) -------------> 4 CO2 (g) + 2 H2O(l) Given,  ∆fH0…

Q: Consider the combustion of butane gas: 13 O2(g) 4CO2(g) + 5H20(g) -2 (a) Predict the signs of AS and…

A: This reaction is a combustion reaction of butane gas in presence of excess of air. Butane is a…

Q: What is the standard state of carbon?

A: Answer:- this question is answered by using the standard state of the element which exist at…

Q: 6. Predict and justify the sign of AS° for the reaction CuO(s)→ Cu(s) + 0(g). (A) AS is positive…

A: Entropy is a state of randomness or disorder. The more the disorderness, the more the entropy.

Q: 10. How much energy is given off when 1.00 g Fe is reacted with excess oxygen?…

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Q: CH3 -OCH3 + Br С. + Br Predict the sign for C. AS° is negative AS° is & 0 AS° is positive

A: Here no of reactant and product both is 2 ∆S0=No of product -No of reactant

Q: Find ΔS° for the formation of Cu₂O(s) from its elements

A: Standard molar entropies: For Cu(s) , So = 33.2 J K-1 mol-1  For O2(g) , So = 205.1 J K-1 mol-1  For…

Q: What is K if AG° =-18.0 kJ for a reaction at 25°? A) 8.1 x 10-3 B) 1.4 x 103 C) 7.3 x 10-4 D) 1.2 x…

A: The relationship between the equilibrium constant K and Gibbs free energy change ΔG0 is given by…

Q: Predict the sign of AS° and calculate AS° for each of the following reactions: a. H2(g) + V½ 02(g) →…

A: Entropy is randomness of any state. Entropy order of various forms of states in increasing order:-…

Q: (b) In a solution calorimeter, what are the signs of AT and AH for an endothermic reaction? sign of…

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Q: Calculate the enthalpy change using the net ionic equation for the given neutralization reaction at…

A: Answer: Chemical reaction mentioned in the problem statement is a neutralization reaction between…

Q: When solid ammonium chloride, NH4CI(s), is added to water at 25 degrees C, it dissolves and the…

A: We have to determine the change of enthalpy and entropy.

Q: Copper(I) oxide can be oxidized to copper(II) oxide:Cu₂O(s)+1/2O₂(g)→2CuO(s) ΔH°ᵣₓₙ =-146.0kJ…

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Q: 5 Predict the sign of AS for each of the following reactions. a. N2(g) + 3 H2(g) →2 NH3(g) b.…

A: ∆ng = (sum of gaseous moles of products) - (sum of gaseous moles of reactants)  If ∆ng comes out to…

Q: determine AH°, for the following reaction: xn

A: Given :-  N2(g) + O2(g) ----> 2NO(g).   ∆Hrxn = +183 KJ  1/2 N2(g) + O2(g) ------> NO2  ∆Hrxn…

Q: Breaking the small pouch of water inside a chemical cold pack containing ammonium nitrate activates…

A: Enthalpy change is the name assigned to the heat quantity evolved or consumed in a constant pressure…

Q: Is a sparkler burning  process exothermic or endothermic? Indicate the sign of ∆H.

A: Is a sparkler burning  process exothermic or endothermic has to be given,

Q: What is a standard state?

A: In chemistry, the standard state of a material is a reference point used to calculate its properties…

Q: Consider the combustion of butane gas: 13 C4H10(g) + -O₂(g) → 4CO₂(g) + 5H₂O(g) 2 (a) Predict the…

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Q: For the reaction below, determine the difference in relevant particles that al determination in the…

A: -2 is answer  Because to determine entropy all molecule taking part in reaction responsible to…

Q: A metal alloy (c = 0.550 J/g°C) with a mass of 275g absorbs 650.0 J. If the initial temperature of…

A: The heat capacity of the metal alloy is = 0.550 J/g°C The mass of metal alloy is = 275 g The amount…

Q: Predict the sign of AG for the following reactions if each reaction was an exothermic. Does the…

A: We know , ∆G = ∆H -T∆S For exothermic reaction ∆H is a negetive quantity.

Q: For the reaction below, determine the difference in relevant particles that allow for determination…

A: Given Reaction: Fe2(CO3)3 (s) + 6 LiClO4 (aq) -------> 2 Fe(ClO4)3 (aq) +3 Li2CO3 (aq) To…

Q: Determine AG° for the reaction 2 SO;(g) + 02(g) → 2 SO,(g) at 25 °C.

A: By this formula we can calculate the value of ∆G° for the given reaction . We have to put the given…

Q: Given the following information, calculate AG for the reaction below at 27 °C. Ni(s) + 1/2O₂(g) →…

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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.