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Quizzes CHEM-1110-02 X C Chegg Study I Guided S x C https:// /lms/quizzing/user

ID: 972586 • Letter: Q

Question

Quizzes CHEM-1110-02 X C Chegg Study I Guided S x C https:// /lms/quizzing/user attempt/quiz start frame. d21?ou 62613408 isprv &drc; E08 gi 60770508 cfgl 08 dnb 0 elearn.chattanoogastate.edu Apps MI Sunflower Brown HE outlook.com aaliyah FAFSA Federal Stud & Tiger Web D My Lab & Academic Calendar K e-Learn A My Home CHEM-1110-02 Gener... Aaliyah Jimenez CHEM-1110-02 General Chemistry l Log Out Materials y Tools v Activities User v Elearn HW 5 Quiz Est. Length: 2:00:00 Aaliyah Jimenez: Attempt 1 Questions Use a standard enthalpies offormation table to determine the change in enthalpy for the following reaction. 4 of 5 questions saved 2 H2S(g) 3 O20g) 2 Page 1: 1 5 H2S(g) -20.1 kj/mol Legend Saved Response Unsaved Response -285.8 kilmol Info Item -296.1 kilmo SO2 (g Quiz Status Quiz Started Your Answer: 8:44 PM 4/19/2016

Explanation / Answer

Delta H of the reaction = [delta H of the products] - [deltaH of the reactants]

= [2 (-296.1 kj/mol) + 2 (-285.8 kj/mol)] - [2 (-20.1 kj/mol)]

= [ - 592.2 kj/mol - 576.1 kj/mol] - [-40.2 kj/mol]

= -1123.6 kj/mol