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Methane (also known as natural gas) is combusted with oxygen to produce heat according to the following reaction: CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g), AHrxn = -890.8 kJ How many moles of methane must be combusted to increase the temperature of 100.0 g of water from an initial temperature of 20.0 °C to a final temperature of 90.0 °C? The specific heat capacity of water is Cs = 4.184 J/g.°C. %3D

Methane (also known as natural gas) is combusted with oxygen to produce heat according to the following reaction: CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(g), AHrxn = -890.8 kJ How many moles of methane must be combusted to increase the temperature of 100.0 g of water from an initial temperature of 20.0 °C to a final temperature of 90.0 °C? The specific heat capacity of water is Cs = 4.184 J/g.°C. %3D

Chemistry
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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Methane (also known as natural gas) is combusted with oxygen to produce heat according to the following reaction: CH4(g) + 2 O2(g) → CO2(g) + 2 H20(g), AHrxn = -890.8 kJ How many moles of methane must be combusted to increase the temperature of 100.0 g of water from an initial temperature of 20.0 °C to a final temperature of 90.0 °C? The specific heat capacity of water is Cs = 4.184 J/g.°C. Assume that all heat generated from methane combustion is transferred directly between the combustion reaction and the water. Assume constant pressure. Circle your answer on the written template. Be sure that it is in the correct units (mol) and has the correct number of significant figures.
Transcribed Image Text:Methane (also known as natural gas) is combusted with oxygen to produce heat according to the following reaction: CH4(g) + 2 O2(g) → CO2(g) + 2 H20(g), AHrxn = -890.8 kJ How many moles of methane must be combusted to increase the temperature of 100.0 g of water from an initial temperature of 20.0 °C to a final temperature of 90.0 °C? The specific heat capacity of water is Cs = 4.184 J/g.°C. Assume that all heat generated from methane combustion is transferred directly between the combustion reaction and the water. Assume constant pressure. Circle your answer on the written template. Be sure that it is in the correct units (mol) and has the correct number of significant figures.
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