**Consider the problem below:****Equation 1:** \( \text{H}_2(g) + \frac{1}{2} \text{O}_2(g) \rightarrow \text{H}_2\text{O}(l) \) \( \Delta H = -285.8 \text{ kJ/mol} \)**Equation 2:** \( \text{C}_s + \text{O}_2(g) \rightarrow \text{CO}_2(g) \) \( \Delta H = -393.5 \text{ kJ/mol} \)**Equation 3:** \( 2 \text{C}_s + \text{H}_2(g) \rightarrow \text{C}_2\text{H}_2(g) \) \( \Delta H = 226.7 \text{ kJ/mol} \)**Equation 4:** \( 2 \text{C}_2\text{H}_2(g) + 5 \text{O}_2(g) \rightarrow 4 \text{CO}_2(g) + 2 \text{H}_2\text{O}(l) \) \( \Delta H = \text{??????} \) The \( \Delta H \) for equation 4 is: _____ (express in kJ)---**Screen Reader Version**Consider the problem below:**Equation 1:** \( \text{H}_2(g) + \frac{1}{2} \text{O}_2(g) \rightarrow \text{H}_2\text{O}(l) \) \( \Delta H = \text{minus } 285.8 \text{ kJ/mol} \)**Equation 2:** \( \text{C}_s + \text{O}_2(g) \rightarrow \text{CO}_2(g) \) \( \Delta H = \text{minus } 393.5 \text{ kJ/mol} \)**Equation 3:** \( 2 \text{C}_s + \text{H}_2(g) \rightarrow \text{C}_2\text{H}_2(g) \) \( \Delta H = 226.7 \text{ kJ/mol} \)**Equation 4:** \( 2 \text

Answered: Image /qna-images/answer/efd7d4d5-43b9-4596-a9fa-211d2ff3cfa8.jpg

Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) H20(1) AH = -285.8 kJ/mol ---> %3D (Equation 2) C(s) + O2(g) CO 2(g) AH = -393.5 kJ/mol ---> (Equation 3) 2 C(s) + H2(g) -- C2H2(g) AH = 226.7 kJ/mol %3D (Equation 4) 2 C2H2(g) + 5 O2(g) ---> 4 CO2(g) + 2 H201) AH = ??????? %3D The AH for equation 4 is: (express in kJ) Screen Reader Version Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) arrow H201) AH = minus 285.8 kJ/mol %3D (Equation 2) C(s) + O2(g) arrow CO2(g) AH = minus 393.5 kJ/mol %3! (Equation 3) 2 C(s) + H2(g) arrow C2H2(g) AH = 226.7 kJ/mol %3D (Equation 4) 2 C2H2(g) + 5 O2(g) arrow 4 CO2(g) + 2 H2O(1) AH = ??????? The AH for equation 4 is:_ (express in kJ)

Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) H20(1) AH = -285.8 kJ/mol ---> %3D (Equation 2) C(s) + O2(g) CO 2(g) AH = -393.5 kJ/mol ---> (Equation 3) 2 C(s) + H2(g) -- C2H2(g) AH = 226.7 kJ/mol %3D (Equation 4) 2 C2H2(g) + 5 O2(g) ---> 4 CO2(g) + 2 H201) AH = ??????? %3D The AH for equation 4 is: (express in kJ) Screen Reader Version Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) arrow H201) AH = minus 285.8 kJ/mol %3D (Equation 2) C(s) + O2(g) arrow CO2(g) AH = minus 393.5 kJ/mol %3! (Equation 3) 2 C(s) + H2(g) arrow C2H2(g) AH = 226.7 kJ/mol %3D (Equation 4) 2 C2H2(g) + 5 O2(g) arrow 4 CO2(g) + 2 H2O(1) AH = ??????? The AH for equation 4 is:_ (express in kJ)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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

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5. Given the following reactions: PA(s) + 502(9) 2H2(g) + O2(9) 6H2O(g) + P4O1o (s) → 4H3PO4(1) + PĄO10 (s) 2H2O(g) 2697.0 kJ/mol -457.18 kJ/mol AG° = -428.66 kJ/mol AG° AG° (a) Determine the standard free energy of formation, AG°F, for phosphoric acid. (b) How does your calculated result compare to the constant thermodynamic value from the table? Explain.
Using data for DHof (KJ/mol) provided below, calculate DHoRxn for: N2O(g) + 3H2(g) ---> N2H4 (l) + H2O (l) DHof (KJ/mol): N2O(g) = 33.85 ; H2 (g)= 0 ; N2H4 (l)= 50.4 ; H2O(l) = -285.8
Both question have the same option
Based on the following reactions: Rxn A: C{s) + O2(g) → CO2 (g) AH°C = -393.5 kJ/mole Rxn B: C3H18() + 25/2 O2lg) → 8CO2(g) + 9H2O) AH°C = -5461 kJ/mole Which reaction would produce more heat 10*A or B? 10*A would produce more heat B would produce more heat they would produce the same amount of heat
Consider the following thermochemical equations (Note: HA is a weak acid)H+(aq) + OH-(aq) → H2O(l) ΔH1HA(aq) → H+(aq) + A-(aq) ΔH2HA(aq) + OH-(aq) → A-(aq) + H2O(l) ΔH3Choose the equation that shows the correct relationship between their enthalpy changes.
Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) ---> H2O(l) ΔH = -285.8 kJ/mol (Equation 2) C(s) + O2(g) ---> CO2(g) ΔH = -393.5 kJ/mol (Equation 3) 2 C(s) + H2(g) ---> C2H2(g) ΔH = 226.7 kJ/mol (Equation 4) 2 C2H2(g) + 5 O2(g) ---> 4 CO2(g) + 2 H2O(l) ΔH = ??????? The ΔH for equation 4 is:______(express in kJ) Screen Reader Version Consider the problem below: (Equation 1) H2(g) + 1/2 O2(g) arrow H2O(l) ΔH = minus 285.8 kJ/mol (Equation 2) C(s) + O2(g) arrow CO2(g) ΔH = minus 393.5 kJ/mol (Equation 3) 2 C(s) + H2(g) arrow C2H2(g) ΔH = 226.7 kJ/mol (Equation 4) 2 C2H2(g) + 5 O2(g) arrow 4 CO2(g) + 2 H2O(l) ΔH = ??????? The ΔH for equation 4 is:______(express in kJ)
Question 7.) What is qFe? A) -10439.1 J (B) 124725 j (C) 10439.1 j (D) -124725 j
*You may need your knowledge in balancing equations which you had learned in your Chem. 1 1. Calculate AH for the reaction from the given thermochemical equations. Tell whether the reaction is exothermic or endothermic C:H« (9) + Ha(g) CaHo(g) CO-(g) CO2(g) H;O(1) H20() H20() AH = -1411 kJ * CHalg) * CaHelg) + O2(g) * Hz(g) + Oz(g) O2(9) AH = -1569 kJ + AH = -285.8 kJ
Consider the problem below: (Equation 1) 2 Ca(s) + O2(g) ---> 2 CaO(s) AH = -1270.2 kJ (Equation 2) 4 Zn(s) + 2 02(g) ---> 4 ZnO(s) AH = -696.6 kJ (Equation 3) 4 Ca(s) + 4 ZnO(s) %3D 4 Zn(s) + 4 CaO(s) AH = ??? ---> To find AH for equation 3 you must: Screen Reader Version Consider the problem below: (Equation 1) 2 "C"a(s) + O2(g) arrow 2 "C" a O(s) AH = minus 1270.2 kJ (Equation 2) 4 Zn(s) + 2 O2(g) arrow 4 Z n O(s) AH = minus 696.6 kJ (Equation 3) 4 "C"a(s) + 4 Z n O(s) arrow 4 Zn(s) + 4 "C"a O(s) AH = ??? %3D To find AH for equation 3 you must: multiply equation 1 only multiply equation 2 only multiply equation 1 and equation 2 multiply neither equation 1 nor equation 2.
- Consider the problem below: (Equation 1) 2 HF(g) ---> H2(g) + F2(g) ΔH = 537 kJ/mol (Equation 2) C(s) + 2 F2(g) ---> CF4(g) ΔH = -680. kJ/mol (Equation 3) 2 C(s) + 2 H2(g) ---> C2H4(g) ΔH = 52.3 kJ/mol (Equation 4) C2H4(g) + 6 F2(g) ---> 2 CF4(g) + 4 HF(g) ΔH = ??????? To find ΔH for equation 4 you must: Screen Reader Version Consider the problem below: (Equation 1) 2 HF(g) arrow H2(g) + F2(g) ΔH = 537 kJ/mol (Equation 2) C(s) + 2 F2(g) arrow CF4(g) ΔH = minus 680. kJ/mol (Equation 3) 2 C(s) + 2 H2(g) arrow C2H4(g) ΔH = 52.3 kJ/mol (Equation 4) C2H4(g) + 6 F2(g) arrow 2 CF4(g) + 4 HF(g) ΔH = ??????? To find ΔH for equation 4 you must: flip equation 1 only flip equation 2 only flip equation 3 only flip equation 1 and equation 2 only flip equation 1 and equation 3 only flip equation 2 and equation 3 only flip no equation
Given the following information, AH° (A2B(g)) = -225 KJ/mol AH (BC(g)) = -160 KJ/mol %3D AH (AC(g)) = -85 KJ/mol AH (B(g)) = -75 KJ/mol Determine AH° for the reaction, A2B(g) + 2BC(g) 2AC(g) + 3B(g) -600 KJ/mol 150 KJ/mol 600 KJ/mol 450 KJ/mol
Given the following information: Pb(s) + PbO2(s) + 2H2SO4(l) ---> 2PbSO4(s) + 2H2O (l) DHrxn = 509.2 KJ/mol SO3 (g) + H2O (l) ---> H2SO4 (l) DHoRxn = -130.3KJ/mol Determine DHoRxn for: Pb (s) + PbO2(s) + 2SO3 (g) ----> 2PbSO4 (s)