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Chemistry - Thermodynamics - I Question with Solution | TestHub

ChemistryThermodynamics - IFirst law of ThermodynamicsEasy2 minPYQ_2020

ChemistryEasysingle choice

Calculate $Q$ and $w$ for the isothermal reversible expansion of one mole of an ideal gas from an initial pressure of $1.0$ bar to a final pressure of $0.1$ bar at a constant temperature of $273$ $K$ .

Options:

Answer:

Solution:

$∆ w = 2.303 \times n R T l og \frac{P_{1}}{P_{2}}$
$Δ U = 0$
$- q = w$
$w_{r e v} = - 2.303 \times 1 \times 8.314 \times 273 l o g \frac{1}{0.1} = - 5227$ $J$
$w_{r e v .} = - 5.22$ $k J$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Thermodynamics - ISubtopic:First law of Thermodynamics

⏱ 2mℹ️ Source: PYQ_2020

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