States of Matter — Chemistry STD 11 Science — Question
Maharashtra BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter2 Marks
Question
Derive the expression for combined gas law.
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Answer
The ideal gas equation is written as $PV = nRT....(1)$$\qquad$On rearranging equation ( 1 ), we get,$\begin{array}{ll}\therefore & \frac{ PV }{ T }= nR =\text { constant } \\\therefore \quad & \frac{ P _1 V _1}{ T _1}=\frac{ P _2 V _2}{ T _2}\end{array}$The ideal gas equation used in this form is called combined gas law.
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