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ICSE Class 9 Answered

What will be the volume of a gas when 3 litres of it is cooled down from 15 degree Celsius to -73 degree Celsius at constant pressure .
Asked by sadiyafathima286 | 16 Jan, 2019, 06:45: PM
answered-by-expert Expert Answer
Given:
 
V1 = 3 lit
 
V2 = ?
 
T1 = 15 °C
 
    = 15+ 273= 288 K
 
T2 = (-73)°C 
    = -73+273 = 200 K
 
According to Charles's law,
 
straight V subscript 1 over straight T subscript 1 space equals space straight V subscript 2 over straight T subscript 2 3 over 288 space equals space straight V subscript 2 over 200 straight V subscript 2 space equals space fraction numerator 3 cross times 200 over denominator 288 end fraction straight V subscript 2 space equals space 2.08 space lit
 
The volume of a gas is 2.08 lit.
Answered by Varsha | 16 Jan, 2019, 07:15: PM

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