Chemistry, 24.09.2020 21:01 MalikaJones
One mole of liquid water at 100°C is heated until the liquid is converted entirely to vapor at 100°C and 1 bar pressure. Calculate q, w, U, and H for each of the following:
A. The vaporization is carried out in a cylinder where the external pressure on the piston is maintained at 1 bar throughout.
B. The cylinder is first expanded against a vacuum (Pex=0) to the same volumn as in part (a), and then sufficient heat is added to vaporize the liquid completely to 1 atm pressure.
Answers: 1
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Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
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One mole of liquid water at 100°C is heated until the liquid is converted entirely to vapor at 100°C...
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