Relationship between ∆H and ∆E
∆H = ∆E + ∆ngRT
Please go through attached image for detailed explanation.
5. An acetylene torch works according to the following reaction: C2H2(g) +502(g) – 2 CO2(g) +...
Question 22 Acetylene burns according to the following equation. C2H2(g) + 5/2 O2(g) --> 2 CO2(g) + H2O(g) \DeltaΔΔHorxn = -1255.8 kJ What is the \DeltaΔΔH for the reaction if 5.50 grams of acetylene (C2H2) burns completely? -4.38 J -228 J -531 J Correct Answer -265 J -6910 J PLEASE SHOW THE WORK SO I CAN UNDERSTAND.
Calculate the value of AH° for the reaction 2 C2H2 () + 502 () 4002) + 2 H20 (1) given the following thermochemical equations: AH° = - 242 kJ AH° = - 394 kJ H2(g) + 4202) → H20 (8) C(s) + O2(%) + CO2(8) 2 C(s) + H2(g) → C2H2 (6) H20 () → H30Ⓡ AH° = +227 kJ AH° = +44 kJ TO - 907 kJ 0 - 2602 kJ 0 - 2514 kJ - 1694 kJ
The reaction of carbon dioxide(g) with hydrogen(g) to form acetylene(g) (C2H2) and water(g) proceeds as follows 2 CO2(g)+5 H2(g) CH(g)+ 4 H2O(g) When Lgrams of CO2(g) react with sufficient H2(g), 9.03 kJ of energy are absorbed. What is the value of AH for the chemical equation given? AHxn kJ
For the combustion of acetylene at 298.15 K, 2 C2H2(g) + 5 O2(g) →4 CO2(g) + 2 H2O(g) calculate ASⓇ(universe) given AS (system) = -194.6 J/K and AH°(system) = -2511.2 kJ. +8228.0 J/K +1290.4 J/K 0 -186.2 J/K +186.2 JK 0-2453.2 J/K
8. Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reaction data and the standard enthalpy changes listed, calculate the AHOc for CaC2(s). (2 points) CaC2(s) +2H20(1) -> Ca(OH)2(s) C2H2(g) AH.2 kJ AH kJ/mol) H2O(g) -241.82 H20(1) -285.83 Ca(OH)2(s)--986.2 C2H2(g) +226.77
Acetylene burns in oxygen to give CO2 and H20 according to the equation below. 2 CH2(g) +502(g) — 4CO2(g) + 2 H20(g) What volume of oxygen will react completely with 33 L CH?! 170L 13L 83 L 66L 33 L Submit Answer Try Another Version 2 item attempts remaining 1 PE pl
1. A degreasing agent, tetrachloroethylene, is produced in the reaction CH4(g) +4 HCl(g) +2 02(g) → C2C14(1) + 4H2O(1) AH° (kJ/mol): 52.26 -92.31 - 285.8 a) determine AH°for CCl4(1) AH' - 878.5 kJ a) AH° for C,CL(1) = b) How much heat (kJ) would be evolved when 7.5 kg of CH4(g) reacts completely (with stoichiometric amounts of HCl and O2)? b) heat, do = c) Using the equation for work done by/on the system; w=-P AV, calculate the amount of...
1).From the following enthalpy changes, S (s) +3/2 O2 (g) 2 SO2 (g) SO3 (g) O2 (g)2 SO3 (g) AH =-395.2 kJ AHo 198.2 kJ Calculate the value of AHo for the reaction by using Hess's law of Heat Summation S(s) O2 (g) SO2 (g) 2) Oxyacetylene torches are fueled by the combustion of acetylene, C2H2. 4 CO2 (g) +2 H20 (g) 2 C2H2 + 5 O2 (g) If the enthalpy change for the reaction is -2511.14 kJ/mol, a) How...
- degreasing agent, Tetrachloroethylene, is produced in the reaction C2H4(g) + 4 HCl(g) + 2 O (8) ► C lic AH (kJ/moly 52 26 - 92.31 a) determine AH°for CC1(1) FC (9) +2 O2(g) → CCI.(l) + 4H2O(1) -285.8 AH x = -878.5 kJ a) AHⓇ for CC (I) = -52.28 kJ b) How much heat (kJ) would be evol amounts of HCl and O:)? uch heat (kJ) would be evolved when 7.5 kg of C2H4(g) reacts completely (with stoichiometric...
The combustion reaction for octane burning in oxygen is: 2 C8H18 (1) + 25 O2(g) → 16 CO2(g) +18 H20() AH = -10869 kJ . Suppose an oxygen bomb calorimeter is loaded with oxygen gas and excess octane. The oxygen gas has a volume of 480.0 mL, pressure of 6.35 atm, and an initial temperature of 22.1 °C. The calorimeter has a heat capacity of 1.75 kJ/ °C. Assuming the oxygen reacts completely, what is the final temperature of the...