Which of the following are true? Choose all that apply. If the energy of the activated complex were decreased, Ea would decrease. AE is positive. The reaction is exothermic. The energy of the products is lower than the energy of the reactants.

Q: QUESTION 9. If the statement is true, write Tas your answer and if it is false, write F as your…

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Q: A spontaneous reaction always involves an increase in

A: A spontaneous reaction is that reaction which can by it self without external source.

Q: Given the following reaction: A (g) + 2B (g) + heat 2D (g) 2C (g) + Considering Le Châtelier's…

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration…

Q: Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some…

A: When heat of reaction is positive , then the reaction will endothermic. Heat of reaction = Energy of…

Q: reactions store energy by forming chemical bonds. When energy is converted between forms there is…

A: Chemical reactions store energy by forming chemical bonds When energy is converted between forms…

Q: Which of the following is not true of spontaneity?     It happens without the addition of external…

A: A spontaneous process occurs automatically without any external force. It is unidirectional

Q: When energy is a reactant in a chemical reaction, the reaction is said to be O neothermic O…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Which of the following types of reactions is always thermodynamically favorable? a) one that is…

A: Thermodynamically favourable reactions are the one which shows change in energy from high to low or…

Q: For the reaction below, the DH° = -113.1 kJ/ %3D mol and DS° = -145.3 J/K-mol. Calculate the…

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Q: How to apply the laws of thermodynamics to chemical reactions ?

A: In any chemical reaction, heat of reaction can be calculated by applying . Hess's law based on 1st…

Q: Use the for the 2 NO ( A. -6

A: Since, The standard enthalpy of the formation is defined as change of enthalpy of 1 mol of the…

Q: If a reaction requires species X and species Y in order to proceed, will it proceed in the absence…

A: For the reaction to occur, the following factors are important: (i) Collision of molecules. (ii) The…

Q: Discuss how catalysts can make processes more energyefficient.

A: A catalyst is substance that can be added to a chemical reaction without getting consumed in a…

Q: Which of the following statement(s) describe(s) an endothermic reaction? Check all that apply.…

A: Endothermic reaction: The reaction in which heat is absorbed is called endothermic…

Q: When enthalpy of reactants is higher than products, then the reaction will be Exothermic none…

A: Endothermic reactions are those reactions in which heat is absorbed to carry out the chemical…

Q: Calculate AH° for the reaction using the given bond dissociation energies. CH₂(g) + 2O₂(g) – ›…

A: To calculate the enthalpy change (ΔH°) for the given reaction, we can use the concept of bond…

Q: Which of the following statements is true? O Energy is required to break the bonds of the reactants…

A: The statements given are,

Q: Suppose that in another reaction the temperature in the bomb calorimeter decreased. What kind of…

A: In calorimeter combustion reaction take place . But it will be exothermic and temperature Will be…

Q: If you were to touch the flask in which an endothermic reaction was occuring

A: Endothermic reaction is defined as a type of reaction that take in heat during the course of…

Q: Differentiate between Emf, Free Energy, and the Equilibrium Constant?

A: An electrochemical cell is a device which generated electricity by the virtue of flow of electrons…

Q: The addition of a catalyst during a chemical reaction alters the internal energy. TRUE OR FALSE?

A: The energy associated with the reactant is known as internal energy.

Q: When 1.2 mol of CH3OH(g) is injected into a 2.0 L container, the following equilibrium becomes…

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Q: If the AH for a reaction is -4 kJ/mol and the AS is 20 J/(molK), which of the following statements…

A: Given : ∆H = -4 kj/mol               ∆S = 20J/(milk)  Tip : ∆G = ∆H - T∆S

Q: If a reaction has a ΔG˚ of 0, what does that mean about the reaction?     The reaction will be at…

A: Given Statement  If a reaction has a ΔG˚ of 0, what does that mean about the reaction   ΔG represent…

Q: Consider the reaction. 2 Fe,0, 4 Fe +302 AHixn +824.2 kJ The formation of 58.0 g of Fe results in

A: As per the balanced reaction- Generation of 4 mol Fe requires 824.2 kJ energy. So, Energy absorbed =…

Q: In an exothermic reaction, will raising the temperature tend to favor the products or the reactants?…

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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: A monoprotic weak acid, HA (K, = 1.78 × 104), was titrated against NaOH. A 50.00-mL of 0.04870 M HA…

A: Given: Ka of HA = 1.78×10-4 Concentration of HA (M1) = 0.04870 Volume of HA (V1) = 50.00 mL…

Q: All reactions are endothermic. O True O False

A: All reaction are endothermic, this statement is totally false.

Q: Consider the reaction. 2 Fe₂O3 4 Fe +30₂ AHxn = +824.2 kJ The decomposition of 26.0 g of Fe2O3…

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Q: Inside a calorimeter is 100 g of water at 39.8 C. A 10-g object at 50C is placed inside the…

A: Since the metal is at higher temperature than water. Hence to reach equilibrium, metal will lose…

Q: Under what conditions will enthalpy tend to dominate the equilibrium state of a chemical system?…

A: The dominance of enthalpy or entropy in determining the equilibrium state of a chemical system…

Q: Methanol (CH3OH) can be synthesized from carbon monoxide and hydrogen by the following reversible…

A: •This question is based on "le chatlier principle":- =>According to le chatlier principle in an…

Q: If a reaction is carried out at constant pressure, which of the following statements is correct? *…

A: At constant pressure, the heat of the reaction is equal to the enthalpy change.

Q: In an exothermic reaction AH positive. negative.

A: In an exothermic reaction ∆H will be positive or negative has to be given.