   Chapter 10, Problem 59AP

Chapter
Section
Textbook Problem

A flask made of Pyrex is calibrated at 20.0°C. It is filled to the 100-mL mark on the flask with 35.0°C acetone. (a) What is the volume of the acetone when both it and the flask cool to 20.0°C? (b) Would the temporary increase in the Pyrex flask’s volume make an appreciable difference in the answer? Why or why not?

(a)

To determine
The final volume of acetone.

Explanation

Given info: The temperature changes from T1=35οC to T2=20οC . The co-efficient of volume expansion of acetone ( β ) is 1.50×104/οC . The initial volume ( V0 ) is 100 mL

Formula to calculate the final volume of acetone is,

V=V0[1+β(T2T1)]

Substitute 100 ml for V0 , 1

(b)

To determine
The effect of temporary increase in the Pyrex flask’s volume.

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