Find for the reaction: ch4(g) + 202(g) ? co2(g) + 2h20(1). [ahg (ch4(.8 kj/mol; ? ? 'f (co2(.5 kj/mol; ? ? 'r(h2o(.5 kj/mol] (you must show your work to get credit)

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What is the density of the black hole

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)