Physical Chemistry
Physical Chemistry
2nd Edition
ISBN: 9781285969770
Author: Ball
Publisher: Cengage
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Chapter 17, Problem 17.12E

If the n i values are all the same, a shorthand way of indicating a combination is C ( x , y ) , which is read, “How many combinations are there of x distinguishable objects separated into systems, each of which have y things?” Evaluate (a) C ( 10 , 2 ) (b) C ( 3 , 1 ) (c) C ( 6 , 3 ) (d) C ( 6 , 2 ) . (Hint:You should determine the number of systems you need for each case first.)

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