AP Chemistry Taylor Unit 9 Progress Check FRQ Scoring Guide

AP Chemistry Scoring Guide



Unit 9 Progress Check: FRQ




Ap Chemistry
Taylor Unit 9
Progress Check
Frq Scoring
Guide.

, AP Chemistry Scoring Guide



Unit 9 Progress Check: FRQ



1. For parts of the free-response question that require calculations, clearly show the method used
and the steps involved in arriving at your answers. You must show your work to receive credit for
your answer. Examples and equations may be included in your answers where appropriate.




Answer the following questions related to .

Substance at




(a) Using the information in the table above, determine the value of at for the
process represented by the equation .



Please respond on separate paper, following directions from your teacher.



(b) Considering your answer to part (a), indicate whether the process is thermodynamically
favorable at . Justify your answer.



Please respond on separate paper, following directions from your teacher.



(c ) Considering your answer to part (b), explain why has a measurable equilibrium
vapor pressure at .



Please respond on separate paper, following directions from your teacher.



Water vapor can be produced in two different processes, as represented below.

Process 1 Process 2



(d) In terms of concepts of entropy and the particle-level structure of the different phases of