A fixed mass of gas has a volume of 750cm3 at 23degree celsius and 800 mm pressure. Calculate the pressure for which its volume will be 720cm3, the temperature being -3degree celsius.
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Concept: Molecular Motion : Relationship of Temperature, Pressure and Volume
vV1 = 750 cc
V2 = 720 cc
T1 = - 23 + 273 = 250 K %3D
T2 = - 3 + 273 = 270
K P1 = 800 m %3D P2
= ? PIV1 P2V2
Using gas equation T1 %3D T2 P VT2 P2 TịP2 800 x 750 x 270 View in 250 x 720 P2 = 900 mm
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