Properties Of Solids And Liquids Question 591

Question: A constant pressure air thermometer gave a reading of 47.5 units of volume when immersed in ice cold water, and 67 units in a boiling liquids. The boiling point of the liquid will be

Options:

A) 135C

B) 125C

C) 112C

D) 100C

Show Answer

Answer:

Correct Answer: C

Solution:

Initial volume V1=47.5 units

Temperature of ice cold water T1=0C=273K

Final volume of V2=67 units

Applying Charle’s law, we have V1T1=V2T2

(where temperature T2 is the boiling point)

or T2=V2V1×T1=67×27347.5=385K=112C



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