practice17

practice17 - Name_R.LopezdelaVega MULTIPLECHOICE. 1 A th

Practice problems fall 2011 Name___________________________________ R.Lopez de la Vega Bubble in the form number in the section entitled Grade or Educ in the scantron. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following is a nonspontaneous process? A) the expansion of a gas into a vacuum B) 2 NH3 (g) N2 (g) + 3 H2 (g) if P NH = 1 atm, P H = P N = 0, and K p = 2 × 10 - 6 C) N 2 (g) + 3 H 2 (g) 2 NH 3 (g) if P H = P N = 1 atm, P NH = 0, and K p = 4 × 10 5 D) none of the above 1) 2) Which of the following processes is spontaneous? 2) 3) Classify each of the following processes as spontaneous or nonspontaneous. I. H 2 O( l ) H 2 O( g ) T = 25°C vessel open to atmosphere with 50% relative humidity II. H 2 O( s ) H 2 O( l ) T = 25°C P = 1 atm A) I and II are both nonspontaneous. B) I and II are both spontaneous. C) I is nonspontaneous and II is spontaneous. D) I is spontaneous and II is nonspontaneous. 3)
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