The standard enthalpies of formation, at 25.00\deg C, of methane (CH4(g)), water (H2O(!), and carbondioxide (CO2(g)) are, respectively, -74.6 kJ/mol, -285.8 kJ/mol, and -393.5 kJ/mol. What quantity ofheat is released (in kJ) during the combustion of 18.20 L of methane under a constant pressure of 1.000atm at 25.00\deg C (N.B., combustion is the reaction of a substance with molecular oxygen to producewater and carbon dioxide)?

Answered: Image /qna-images/answer/af0e88e5-c0a2-4b99-a86b-70196c5f3082.jpg

Answered: The standard enthalpies of formation,…

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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A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300.g of water (see sketch at right). First, a 6.000g tablet of benzoic acid C6H5CO2H is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of /26.454kJg .) The temperature of the water is observed to rise from 14.00°C to 39.98°C over a time of 14.9 minutes. Next, 5.570g of acetylene C2H2 are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 14.00°C to 60.18°C . Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: A "bomb" calorimeter. →+2C2H2g 5O2g + 4CO2g 2H2Og Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced students:…
1) Draw the structures corresponding the following names: A. trans-Cyclobutane-1,2-dicarboxylic acid B. 4-Methylpentanoic acid C. o-Hydroxybenzoic acid D. 2,3-Dimethylhexanoic acid
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch at right). First, a 5.500 g tablet of benzoic acid (C6H5CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 18.00 °C to 48.06 °C over a time of 5.8 minutes. Next, 5.630 g of ethylene (C2H4) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 18.00 °C to 77.25 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: C₂H₁(g) + 302(g) - 200,(s) + 2H,O(g) n thermometer stirrer ☑ chemical reaction "bomb" A "bomb" calorimeter. water insulation Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for…
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1100. g of water (see sketch at right). First, a 7.000 g tablet of benzoic acid (CH₂CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 15.00 °C to 53.26 °C over a time of 12.3 minutes. Next, 5.420 g of acetylene (C₂H₂) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 15.00 °C to 74.42 °C. Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: Is this reaction exothermic, endothermic, or neither? If you said the reaction was exothermic or endothermic, calculate the amount of heat that was released or absorbed by the reaction in the second experiment. Calculate the reaction enthalpy ΔΗ. per mole of…
A student runs two experiments with a constant-volume "bomb" calorimeter containing 1300. g of water (see sketch at right). thermometer stirrer First, a 8.000 g tablet of benzoic acid (C6H₂CO₂H) is put into the "bomb" and burned completely in an excess of oxygen. (Benzoic acid is known to have a heat of combustion of 26.454 kJ/g.) The temperature of the water is observed to rise from 10.00 °C to 47.00 °C over a time of 5.8 minutes. olo Next, 5.940 g of ethylene (C₂H4) are put into the "bomb" and similarly completely burned in an excess of oxygen. This time the temperature of the water rises from 10.00 °C to 55.55 °C. Ar chemical reaction Use this information, and any other information you need from the ALEKS Data resource, to answer the questions below about this reaction: "bomb" A "bomb" calorimeter. C₂H₂(g) + 30₂(g) → 2CO₂(g) + 2H₂O(g) 4 Be sure any of your answers that are calculated from measured data are rounded to the correct number of significant digits. Note for advanced…
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