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InterviewSolution
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A gas occupies 700 mL at a pressure of 700 mm of Hg and a temperature of 57 degree Celcius. If at STP the mass of the gas is 1.5 g find the vapour density and the molecular weight of the gas. (Given 1 litre of Hydrogen weighs 0.09 g at STP) |
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Answer» AnswerV 1 =700 MLP 1 =1 atm=760 mm HgT 1 =298 K V 2 =?P 2 =400 mm HgT 1 =288 KHere number of MOLES is constant.∴ T 1 P 1 V 1 = T 2 P 2 V 2 V 2 = T 1 ×P 2 P 1 ×V 1 ×T 2 = 298×400760×700×288 =1285.37 ml∴ VOLUME occupied by gas is 1285.37 ml. |
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