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Selina solutions
Grade 9 
Chemistry
Selina Solutions CONCISE subject class 9-ICSE-Chemistry
Chapter 7 Study Of Gas Laws
Number Problems
Question 7
Chemistry
Selina Solutions CONCISE subject class 9-ICSE-Chemistry
Chapter 7 Study Of Gas Laws
Number Problems
Question 7
Chapter 7 Study Of Gas Laws | Number Problems
Question 7
CHAPTERS
561 dm3 of gas at S.T.P. is filled in a 748 dm3 Container. If the temperature is constant, calculate the\ percentage change in pressure required.
Initial volume = V1 = 561 dm3
Final volume = V2 = 748 dm3
Difference in volume = 748 - 561 = 187 dm3
As the temperature is constant,
Decrease in pressure percentage = 187 x 100/748
= 25%
Question 7
561 dm3 of gas at S.T.P. is filled in a 748 dm3 Container. If the temperature is constant, calculate the\ percentage change in pressure required.
Initial volume = V1 = 561 dm3
Final volume = V2 = 748 dm3
Difference in volume = 748 - 561 = 187 dm3
As the temperature is constant,
Decrease in pressure percentage = 187 x 100/748
= 25%
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