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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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McQUEEN! McQUEEN!
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3 years ago
Combine the reactions:

P4(s) + 6 Cl2(g)  → 4 PCl3(g)  ΔrH°298 = -1225.0 kJ/mol
PCl3(g) + 3 H2O(l)  → H3PO3(aq) + 3 HCl(g)  = -853.5 kJ/mol
2 H2(g) + O2(g)  → 2 H2O(l)  = -571.5 kJ/mol
H2(g) + Cl2(g)  → 2 HCl(g)  = -184.9 kJ/mol

to obtain the reaction: P4(s) + 6 H2(g) + 6 O2(g) → 4 H3PO3(aq).
What is the value of ΔrH°298 for this reaction?

▸ -2465.1 kJ/mol

▸ -6958.6 kJ/mol

▸ -2834.9 kJ/mol

▸ -9177.4 kJ/mol

▸ 8605.9 kJ/mol
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
Authors:
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oricosonoricoson
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McQUEEN! Author
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3 years ago
This site is awesome
wyq2651
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Yesterday
Good timing, thanks!
kevin12323h
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2 hours ago
Thanks
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