Task 3.2. Calculate the standard enthalpy of reaction of some thermochemical equations governed by Hess Law.Direction: Solve the following items. Show complete solution. Express all standard enthalpy to kilojoules. 2. Find AH° for the reaction 2H2(e + 2C6) + O2() → CH$OH0, using the following thermochemical data.C2HSOH 1 + 2 O2 (e → 2 CO2 e+2 H2O ()C () + O2 (e) → CO2 (eH2 (e + ½ O2 (2) → H2O ()AH = -875. kJAH = -394.51 kJAH = -285.8 kJ

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

Answered: 2. Find AH° for the reaction 2H2(e)+…

Chemistry

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Chapter1: Chemical Foundations

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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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11. How much heat is released when 4.19 mL of 0.54 M HBr reacts with 23.50 mL of 0.0695 M Ba(OH)₂? 2 HBr(aq) + Ba(OH)₂(aq) → BaBr₂(aq) + 2H₂O(l) A) -446 J B) 446 J C) 130 J D) 187 J E) -187 J AH=-114.6 kJ
Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H₂(g)- →C4H₁0(g) ΔΗ° = -125.6 kJ (2) C₂H4(g)- →2C(s) + 2H₂(g) AH° = -52.3 kJ what is the standard enthalpy change for the reaction: (3) 2C₂H4(g) + H₂(g) →C4H10(g) kj AH° = ?
cellus_engine.html?ClassID=2134898241# Calculate the enthalpy of the net reaction from the reactions given. 1) H2(g) + Cl2(g) → 2HCI(g) AH, = -184.6 kJ 2) N2(g) + 4H2(g) + Cl2(g) → 2NH,CI(s) AH2 = -630.8 kJ 3) N2(g) + 3H2(g) → 2NH3(g) AH3 = -296.4 kJ Net Reaction NH,CI(s) - NH3(g) + HCI(g) AHxn = [ ? ] kJ Enter either a + or - sign AND the magnitude. Use significant figures Enter
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A chemist measures the enthalpy change AH during the following reaction: C,H,0,(s)-3 CH,(o) + 3CO,(g) AH=-132. kJ Use this information to complete the table below. Round each of your answers to the nearest kJ/mol. reaction AH 9CH, (0) + 9Co, (a) - 30H,0,0) 3CH, (6) + 300, (a) - C,H,0,0) GH,0,) - CH, 6) + co,()
1. What is the final overall reaction for these three reactions below? Reaction 1: C3 Hs (g) + 5 O2 (g) → 3 CO2 (g) +4 H2O (g), AH1 = -2043 kJ Reaction 2: C (s) + O2 (g) Reaction 3: 2 H2 (g) + O2 (g) + CO2 (g), AH2 = -393.5 kJ 2 H2O (g), AH3 -483.6 kJ Hint. Reverse Reaction 1 then simplify by cancelling compounds in opposite sides of the arrow.
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Which reaction would it be possible to calculate (Triangle H)?
What is the standard enthalpy change for the reaction: 2C5H10(1) + 15O2(g) → 10CO2(g) + 10H20(1); where C5H10(1) AH°f = –605.0 kJ/mol; CO2(g) AH°f = -393.5 kJ/mol; H2O(1) AH°F - 285.8 kJ/mol. O a. -5583 kJ O b. -5783 kJ O C. -5383 kJ O d. -5183 kJ e. -4983 kJ
Given the following equation, C3HS(g) +5 O2(g)→3 CO2(g) +4 H;O(g) AGpan =-2074 kJ Calculate AG for the following reaction. 21 CO2(g) + 28 H2O(g)→7 C3H8(g) + 35 O2(8) -2074 kJ O +14518 kJ O -14518 kJ O 296 kJ O +2074 kJ
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2. Find AH° for the reaction 2H2(e)+ 2C6) + O2=) → C:H;OH0, using the following thermochemical data. CHŞOH ) + 2 02 (E) → 2 CO2 (e) + 2 H2O ) C ()+ O2 e → CO2 (e) H2 (e + ½ O2 (e→ H2O ) AH = -875. kJ AH = -394.51 kJ AH = -285.8 kJ