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How much heat is evolved when 2 moles of methane (CH4) is burned according to this equation? CH4(g) + 2O2(g) CO2(g) + 2H2O(l) Hcomb = -890 kJ/mol. . a. -1780 kJ. b. 445 kJ. c. 1780 kJ. d. 27,400 kJ
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How much heat is evolved when 2 moles of methane (CH4) is burned according to this equation? CH4(g) + 2O2(g) CO2(g) + 2H2O(l) Hcomb = -890 kJ/mol. . a. -1780 kJ. b. 445 kJ. c. 1780 kJ. d. 27,400 kJ
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Fred Sousa
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To calculate the amount of heat evolved when 2 moles of methane that is burned, we use the value of the heat of combustion and multiply it by the number of moles. We calculate as follows:
Heat = 2 mol ( - 890 kJ/mol) = -1780 kJ -------> OPTION A
Jamira
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