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Know Your Thermo

Describe the reaction below:

PCl3(g) + Cl2(g) -> PCl5(g) ; Delta(Hf) = -87.9kJ/mol

A. spontaneous at all temperatures.

B. nonspontaneous at all temperatures.

C. ΔGrxn is less than 0 at only low temperatures.

D. spontaneous at only high temperatures.

To see the solution, visit the following link:
http://mcatquestionoftheday.com/chemistry/know-your-thermo/<http://mcatquestionoftheday.us4.list-manage1.com/track/click?u=d3318065969b7c08ead5d4c4d&id=e4a5179760&e=61d7ba7392>