Predict the enthalpy change for the reaction below using thethermochemical equations provided.2 C2H2 + 5 O2 --> 4 CO2 + 2 H204 C+2 H2 --> 2 C2H2AHn= + 226.7 kJ/molC+ O2 --> C02AHxn = - 393.5 kJ/molA Hxn= - 571.6 kJ/mol%3D2 H2 +O2 --> 2 H20-2372 kJ/molO-1919 kJ/mol-738.4 kJ/molO-1192 kJ/mol

Answer: the enthalpy change for the reaction is -2372 KJ/mol . Option a. -2372 KJ/mol is correct

Predict the enthalpy change for the reaction below using the thermochemical equations provided. 2 C2H2 + 5 O2 --> 4 CO2 + 2 H20 4 C+2 H2 --> 2 C2H2 AHxn = + 226.7 kJ/mol C+ O2 --> CO2 AHrxn = - 393.5 kJ/mol 2 H2 + O2 --> 2 H20 AHXN = - 571.6 kJ/mol -2372 kJ/mol -1919 kJ/mol -738.4 kJ/mol O-1192 kJ/mol

Predict the enthalpy change for the reaction below using the thermochemical equations provided. 2 C2H2 + 5 O2 --> 4 CO2 + 2 H20 4 C+2 H2 --> 2 C2H2 AHxn = + 226.7 kJ/mol C+ O2 --> CO2 AHrxn = - 393.5 kJ/mol 2 H2 + O2 --> 2 H20 AHXN = - 571.6 kJ/mol -2372 kJ/mol -1919 kJ/mol -738.4 kJ/mol O-1192 kJ/mol

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...

See similar textbooks

Similar questions

An exothermic reaction has a positive AH, gives off heat to the surroundings, and feels warm to the touch. a negative AH, absorbs heat from the surroundings, and feels cold to the touch a negative AH, gives off heat to the surroundings, and feels warm to the touch. 1055.2 kJ O ) a positive AH, absorbs heat from the surroundings, and feels cold to the touch.
10. Calculate the standard enthalpy of formation of N₂O5 from the following data: kJ mol kJ 2NO(g) + O₂(g) →2NO₂(g) 4NO2(g) + O₂(g)→2N205(g) N₂(g) + O₂(g) →2NO(g) 4,H☺ = -114.1 = -110.2- 'mol kJ mol AH AH = + 180.5,
Use the standard molar enthalpies of formation and calculate the change in enthalpy for the reaction : 2CH3OH (l) + 3O2 (g) --> 2CO2 (g) + 4H2O (l) Given: CH3OH(l): -238.4 kJ/mol O2(g): 0 kJ/mol CO2(g): -393.5 kJ/mol H2O(l): -285.83 kJ/mol
For the reaction below (which will be labeled reaction A), the reaction enthalpy is unknown: 2 B + 3 H2 B2H6 HA = ? Use the following thermochemical data to calculate the reaction enthalpy ΔHA: Reaction 1: 4 B + 3 O2 → 2 B2O3 ΔH1 = –2509 kJ Reaction 2: 2 H2 + O2 → 2 H2O ΔH2 = –572 kJ Reaction 3: B2H6 + 3 O2 → B2O3 + 3 H2O ΔH3 = –2,159 kJ Calculate the enthalpy of reaction A (in kJ) and enter the numerical value in the answer box. Do not write units in the answer box. Clearly show on a paper how each reaction can be combined to equal reaction A (multiply or reverse each of the above reactions).complete work must be uploaded
Please help, very urgently required
Find the enthapy change for the reaction below in kJ . 4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(g) ΔH= ? Given : (NH3(g)) = -46.1, (NO(g)) = + 90.3 kJ/mol and (H2O(g)) = -241.8 kJ/mol.
What is the enthalpy change, Delta Hrxn, for the following reaction? 2 RbI (s) + Cl2 (g) --> 2 RbCl (s) + I2 (s) a. 1.33 x 103 kJ b. 656 kJ c. – 215 kJ d. 107 kJ e. 763 kJ f. none of these g. – 1.33 x 103 kJ h. 871 kJ
Consider the following two reactions: AH°rxn = 456.7 kJ/mol AH°rxn = -22.1 kļ/mol A - 2B A -C Determine the enthalpy change for the process: 2B – C O -434.6 kJ/mol O -478.8 kJ/mol 478.8 kJ/mol 434.6 kJ/mol More information is needed to solve the problem.
How much heat is rel;eased to the surroundings when 5.00 g of CO2 is produced according to the following thermochemical equation? C3H8 + 5 O2 --> 3 CO2 + 4 H, AHn = -2220 kJ/mol %3D Note: the molar mass of CO2 is 44.0 g/mol 757 kJ O252 kJ 740 kJ 84.1 kJ
Write an equation which represents the standard enthalpy of formation reactions. [You must include the states of matter for each atom or compound.] a. Ca(NO 3)2 (s), b. CH3OH (1), c. NaClO4 (s)
20) The standard enthalpy change for the reaction below is -196.0 kJ. Use Table below to calculate the standard enthalpy of formation of H₂O (1). 2H₂O2 (1) ->>> 2H₂O (1) + O₂ (g) Substance H₂O2 (1) AH° (kj/mole) -187.8