A) Given the standard enthalpy changes for the following two reactions: (1) 2C(s) + H2(g)C2H2(g)...... ΔH° = 226.7 kJ (2) 2C(s) + 2H2(g)C2H4(g)......ΔH° = 52.3 kJ what is the standard enthalpy change for the reaction: (3) C2H2(g) + H2(g)C2H4(g)......ΔH° = ? ------- kJ B)  Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O2(g)2PbO(s)...... ΔH° = -434.6 kJ (2) Pb(s) + Cl2(g)PbCl2(s)......ΔH° = -359.4 kJ what is the standard enthalpy change for the reaction: (3) 2PbCl2(s) + O2(g)2PbO(s) + 2Cl2(g)......ΔH° = ? ------ kJ

Q: Calculate ΔH for the reaction2 C(s) + H2(g) -----> C2H2(g)given the following chemical equations…

A: Given,

Q: Calculate the ΔH for the reaction: 4 NH3 (g) + 5 O2 (g) --> 4 NO (g) + 6 H2O (g) from the following…

A: According to Hess's law, the enthalpy change of a reaction is independent of the number of steps…

Q: The enthalpy of reaction for the combustion of C to CO2 is -393.5 kJ/mol C, and the enthalpy for the…

A: The Hess's law states that the complete enthalpy of the reaction changes, which do not depend on the…

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

A:

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

A: The 2 reactions given are (1) 4C(s) + 5H2(g) ------> C4H10(g)...... ΔH° = -125.6 kJ(2) C2H2(g)…

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: Given the standard enthalpy changes for the following two reactions: AHo-696.6 kJ ΔΗ (1) 2Zn(s)…

A: Given information:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Hg(l) + O2(g) ->…

A: ΔH° =  267 kJ

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: Given the standard enthalpy changes for the following two reactions: (1) N2(g) +…

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

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

A: Given  4C(s) + 5H2(g)  ------>  C4H10 (g)               ∆H°  = - 125.6 KJ       ( Equation 1 )…

Q: e standard enthalpy change

A:

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

A: The reactions given are 1) Sn (s) + Cl2 (g) -------> SnCl2 (s)…

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

A:

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

A:

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

A: This problem can be solved using Hesse's law of constant heat summation.

Q: the enthalpy for the decomposition of liquid water into gaseous hydrogen and oxygen

A:

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

A:

Q: Calculate ΔH for the reaction; 4NH3(g) + 5O2 (g) => 4NO (g) + 6H2O (g) , from the following data.

A: 2N2 (g) + 2O2 (g) => 4NO(g)   ........equation(1) 6H2 (g) + 3O2 (g) => 6H2O(g)…

Q: Given the standard enthalpy changes for the following two reactions: (1) N₂(g) +202 (g) → 2NO2 (9)…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: The standard enthalpy of combustion of solid carbon to form carbon dioxide gas is -393.7 kJ per mol…

A:

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

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) Hg(l) +…

A:

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

A: Answer

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: Given the standard enthalpy changes for the following two reactions: (1) 2Zn(s) + O2(g)2ZNO(s).....…

A: Given: The reaction are as follows: 2Zn(s) + O2(g)------>2ZnO(s)                      ∆H0=-696.6…

Q: Calculate ΔH for the reaction; 4NH3(g) + 5O2 (g) => 4NO (g) + 6H2O (g) , from the following data.…

A: Given that:           △H for the formation of 2 mol NO (g) = - 180.5 KJ△H for the formation of 2 mol…

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: Calculate the enthalpy change for the reaction C(graphite) + 2 H2(g) → CH4(g) with the help of the…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Fe(s) + O2(g)=…

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + 02(g)→2NIO(s) AH°…

A: We have to find the standard enthalpy changes for the given reaction.

Q: standard enthalpy change for this reaction.

A:

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + 202(g)N½O4(g) AH° =…

A: You have given a reaction that follows the Hess Law of enthalpy formation.

Q: Given the standard enthalpy changes for the following two reactions: (1) Sn(s) + Cl½(g}→SnCl½(s) AH°…

A: Enthalpy (H) is a state function. Hess's Law of constant heat summation: If a chemical reaction…