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Chemistry - Real Gas Question with Solution | TestHub

ChemistryReal GasVander Waal's Gas EquationEasy2 minPYQ_2020

ChemistryEasysingle choice

For a real gas obeying van der waal's equation, a graph is plotted between ${PV}_{m} (y - axis)$ and $P (x - axis)$ where $V_{m}$ is molar volume. y-intercept of the graph is

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Answer:

Solution:

$(P + \frac{a}{V^{2}}) (V - b) = RT$

Or $PV + \frac{a}{V} - Pb - \frac{ab}{V^{2}} = RT$

When, $P = 0, V_{M} = V$

${PV}_{M} = Pb + RT$
for 'r' intercept
P→O

$∴ P_{b} = O$

$∴ P V_{m} = R T$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Real GasSubtopic:Vander Waal's Gas Equation

⏱ 2mℹ️ Source: PYQ_2020

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