The standard enthalpy change for the following reaction is 433 kJ at 298 K. KClO4(s)---->  K(s) + 1/2 Cl2(g) + 2 O2(g)        ΔH° = 433kJ What is the standard enthalpy change for this reaction at 298 K? K(s) + 1/2 Cl2(g) + 2 O2(g)--->  KClO4(s)

Q: For the chemical reaction Ca (s) + ½ O₂ (g) → CaO (s) ∆H° = -635 kJ/mol. What is the molar enthalpy…

A: The balanced Chemical equation given in the question - Ca(s) + ½O₂(g) → CaO(s), ∆H° =-635 kJ/mol…

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g) N204(g) AH°…

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Q: What is the enthalpy change when 0.1 moles of ethanol undergoes complete combustion? The molar…

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Q: Use the standard reaction enthalpies given below to determine AH°rxn for the following reaction: 4…

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Q: The standard enthalpy change for the following reaction is 986 kJ at 298 K. Ca(OH)2(9) → Ca(s) +…

A: The given reaction is  Ca(OH)2 -------> Ca(s) + O2(g) + H2(g)  Delta H = 986 kl/mol

Q: Given the standard enthalpy changes for the following two reactions (1) 4C(s) + 5H2(g)–C,H10(g) AH°…

A: If the given reaction is multiplied by 2 by two, then value of the given standard enthalpy change…

Q: their enthalpy changes,                         N2 (g)   +   O2 (g)    -->    2 NO (g)…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 2C(s) +…

A: According to Hess's law, the enthalpy change of the final reaction can be calculated by adding the…

Q: A calorimeter contains 23.0 mL of water at 14.5 °C . When 2.20 g of X (a substance with a molar mass…

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Q: Calculate the standard enthalpy change in kJ for the given reaction. CH4 (g) + N2 (g) --> HCN (g) +…

A: The chemical reaction :  CH4(g) + N2(g) ---> HCN(g) + NH3(g)  Enthalpy of formation of : CH4(g) =…

Q: The standard enthalpy change for the following reaction is 35.6 kJ at 298 K. L(s) + Cl2(g) – 2…

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Q: The standard enthalpy change for the following reaction is 270 kJ at 298 K. 2 HNO3(g) N2(g) + H2(g)…

A: Heat of formation of HNO3 = -135KJ/mol

Q: The standard enthalpy change for the following reaction is 401 kJ at 298 K. 2 CH3OH(g)2…

A: • Given,         2 CH3OH(g) → 2C(s,graphile) +4H2(g)+O2(g),                              ∆H°=401 KJ…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g) C¾H10(g) AH°…

A: The enthalpy change accompanying a chemical reaction during the transformation of 1 mol reactants to…

Q: Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + 2H2(g) ->…

A: Recall the given equations with value of standard enthalpy chages 2Cs + 2H2g → C2H4g  ,∆H°=52.3 kJ…

Q: N2 (g) + O2 (g) 2 NO (g) AH°rxn = +197 kJ %3D NO2 (g) → NO (g) + 1/2 O2 (g) AH°rxn = +89.2 kJ What…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H₂(g) →C4H10(g)…

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Q: The standard enthalpy change for the following reaction is -104 kJ at 298 K. 3 C(s,graphite) +4…

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Q: The standard enthalpy change for the following reaction is -851 kJ at 298 K. 2 Na(s) + O2(g) +…

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Q: The enthalpy for the formation of 1 mole of NH3(aq) is -80.29 kJ/mol. What is the enthapy for the…

A: The heat of formation of a compound is defined as the heat change accompanying for the formation of…

Q: When 150 mL of 1.00 M NaOH is added to 100 mL of 1.30 M HCl in an insulated calorimeter, the…

A: To calculate the enthalpy change for the neutralization reaction, the following quantities are…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) +…

A: • The required thermochemical equation is,  2C2H4(g)+ H2(g) → C4H10(g) ; ∆H° = ?    • The given…

Q: Si(s) + 2 F2(g)        ΔH° =  1.61×103  kJ What is the standard enthalpy change for this reaction…

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Q: The standard enthalpy changes for formation of ammonium oxide and iron 3 oxide are 2Al+3/2O^2→Al2O^3…

A: The standard enthalpy of particular reaction can be calculated from the standard enthalpies of the…

Q: The standard enthalpy change for the following reaction is-438 kJ at 298 K. 2 C(s,graphite) + O2(g)…

A: It is given that when 2 moles of solid graphite is reacting with 1 mole of oxygen and 2 moles of…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H,(g) C,H1o(g) AH°…

A: According to Hess law, the enthalpy change of a reaction is equal to the sum of the enthalpy change…

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

A: We have to calculate the enthalpy change for given reaction.

Q: (1) N2(g) + O2(g)2NO(g)...... ΔH° = 181.8 kJ (2) N2(g) + 2O2(g)N2O4(g)......ΔH° = 9.2 kJ what is…

A: The enthalpy change of the system is a state function. The change in enthalpy does not depends on…

Q: The standard enthalpy change for the following reaction is -731 kJ at 298 K. 2 N2(g) + 4 H2(g) + 3…

A: Rule : on dividing the reaction with any constant, the value of enthalpy change also gets divided by…

Q: The standard enthalpy change for the following reaction is 925 kJ at 298 K. Mg(OH)2(s) → Mg(s) +…

A: We know that Enthalpy is a state function one that depends on only the Initial state of the system…

Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 2Hg(l) + O2(g)2HGO(s) AH° =…

A: the solution is as follows:

Q: Calculate the standard enthalpy change for each of the following reactions. 1.…

A: According to the question, we need to calculate the heat of the reaction. The heat of the reaction…

Q: For which reaction below does the enthalpy change under standard conditions correspond to a standard…

A: To identify: A reaction for which the enthalpy change of the reaction corresponds to a standard…

Q: The standard enthalpy change for the following reaction is 657 kJ at 298 K. SiCl4(g) →→→ Si(s) + 2…

A: Given -> SiCl4(g) ------> Si(s) + 2Cl2(g).       ∆H°= 657 KJ  T = 298 K

Q: Given the standard enthalpy changes for the following two reactions: (1) Sn(s) + Cl2(g)--SnCl2(s)…

A: Hess's law: The enthalpy change of a reaction is equal to the sum of enthalpy changes in each step.

Q: the following two reactions: (1) N2(g) + 2O2(g) -> 2NO2(g)...... ΔH° = 66.4 kJ (2) 2N2O(g) ->…

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Q: The standard enthalpy change for the following reaction is -224 kJ at 298 K. Hg(l) + Cl2(g) ->…

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Q: Hydrogen gas, H2 , reacts explosively with gaseous chlorine, Cl2 , to form hydrogen chloride,…

A: Given, Hydrogen gas H2 reacts explosively with gaseous chlorine Cl2. What is the enthalpy of the…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)→C„H1(g) AH°…

A: ∆H° is negative means that it is e reaction  To get equation 3 we should multiply equation 2 by 2…

Q: For the chemical reaction H2 (g) + F2 (g) → 2 HF (g) AH° = -79.2 kJ/mol. What is the molar enthalpy…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) +…

A: In these types of question, we have to arrange the given two equations, in such a way that it…

Q: The standard enthalpy change for the following reaction is 2.44×103 kJ at 298 K. 2 BaCO3(s)--->2…

A: Given: 2 BaCO3(s) → 2 Ba(s) + 2 C(s, graphite) + 3 O2(g)     ΔH° = 2.44×103kJ  ----eqn(1)

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)2NO2(g) AH° =…

A: The reactions given are 1) N2 (g) + 2 O2 (g) -----> 2 NO2 (g)…

Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

A: Given,

Q: What is the standard enthalpy change for the reaction? 2NH3(g)→N2H4(1) + H2(g) AH°1 = -543 kJ-mol-1…

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Q: The standard enthalpy change for the following reaction is -135 kJ at 298 K. 1/2 N2(g) + 1/2 H2(g)…

A: Basic Rule If any number is multiplied in the reaction Then that number is also multiplied in the…

Q: A.) Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + O2(g)2NI0(s)…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H₂(9) C4H10(g) AH°…

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a…

Q: The standard enthalpy change for the following reaction is 1.11×103 kJ at 298 K. 2 BaO(s)2 Ba(s) +…

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