winter 08 MWF white+midterm+2

winter 08 MWF white+midterm+2 - ! \.t[c &l g 2 114 c...

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!\.t[c 1. ftg poinfs) Platinum (symbol Pt) has a density of 2114 g cm-s' It is observed that X-ray radiation of 264 pm is scattered in phase by u sample of platinum at an ut giu of 25". What is the radius, in pm, of platinum? rI d: - = ct L 9"n I l.tt i z cto'rs rfl lbccl fqo\i,^) o { fcc hcr P+ 4,: y -,[ f: a:J1 'l z. e point each)Circle the correct sign of work that would be associated with the following Processes' a) Z NOz(g; --- NzO+(g) b) Volume of a gas sample decreases 4.0 L with Pext = t atm c) Z PHg(g) + 3 Oz(g) -- PzOs(s) + 3 HzO(g) (r. (o{,r.s t r,* ) -Ji Achangeintota1energyof97}with99Jofheatabsorbed.W=-(A \-/ 'f EA* t*$ o[ ce.lt: A: z'\s;^ o ?.GLI xrt T a'"' sivr zs" v\^Jt cc t( l, qe : C).foxro-rc*J) ! 6. tre xr o2) ah^ I rrt ot-: d)
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wtik #a 3' The diagram below contains vapor pressure-temperature curves for water and methanu (1^ no particular oid"r), with an external pressure of 1 atm. Using it, answer the following
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winter 08 MWF white+midterm+2 - ! \.t[c &l g 2 114 c...

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