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IMG_5310 - x K = 19.1 WWW" “9,033“...

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Unformatted text preview: x K = 19.1 . WWW" “9,033“ L-bar-K" -mol")(333 10]" K = 1.48! W4 (0)111: initial pressure of PH; is: P a m 2 (0.0128 mulXO.983l4 L-bar . K“‘mol"‘)(333 K) H" P 0.500 L = 0.7038 bar 1?! pressure (bar) PHg(g) + 9013(8) # PHsBCl3(s) initial 0.7088 0 chmge +x +x equilibrium 0.7088+ x - x W 1 1 K = 19.2 3 = ——-—“— Pm. 'Paclx (0.7088 + 1):: x’ + 0.7088x ~ 0.05208 = o , M‘ x _ -0.7088:t ‘Ililtl.7088)2 + 4(0.05208) 2 = 0.06712 {negative mot isn't physically possible) So P”. = 0.7088 +0.06712 = 0.1759 bar ; I P 0 7759 bar 6 Ed = fi = _,____,—'._.___._— = . _; .' ' 6”“ RT (0.03314 L-bar - x-'mor')(333 K) 03280 "'01 L i; 9-8 I (d) K increases as T increases, so the equitibrimn position is shifting 3: toward products with the addition of heat. The reaction is endothermic. ii I 5 _ in § (e) K ’ Kl: (RT) ‘1 B K i K = 26.2 ': ° (RT)“" [(008314 L -bar - K" 'ruol")(3<i3 KN": = 2.13 x 10‘ (f) PHJ has a lone pair of electrons to donate in order to form an adduct with BCl, . which can be an electron acceplor. Therefore PH. is a Lewis base while BCI, is a Lewis acid. ...
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