cvg cengagen w.com im takeAssagnment takeCovalentActivity.do?locator-assignn Tet

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cvg cengagen w.com im takeAssagnment takeCovalentActivity.do?locator-assignn Tetrachloromethane, CC14 is formed from methane and chlorine in the following reaction: CH4(g) + 4 Cla(g) 4HCI(g) + CCldg) Calculate ,, the ethalpy change for this reaction, using the enthalpies of formation of CO2(g), HSX) and CCLg) (AHe-9598 k/mol), and the enthalpy changes for the following reactions: CH4(g) + 202(g) 2H20() + CO2(g) AH-890.4 kJ/mol-rxn 2HCl(g) H 2 (g) + Cl 2 (g) kJ/mol-rxn Submit Answer Try Another Version 7 item attempts remaining Previous Next

Explanation / Answer

Hf CO2 = -393.5

Hf H2O = -285.8

Hf-CCl4 = -95.98

Hf-Cl2 = 0

Hf HCl = -92.3

HRxn = hproducts - Hreactnat

HRxn = 4HCl + CCl4 - (CH4 + 4Cl2)

HRxn = 4*-92.3 + -95.98 - (-74.6 + 4*0)

HRxn = -390.58

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