Chemistry - Thermodynamics - I Question with Solution | TestHub

ChemistryThermodynamics - IFirst law of ThermodynamicsEasy2 minPYQ_2020
ChemistryEasysingle choice

A piston filled with 0.04 mol of an ideal gas expands reversibly from 50.0 mL to 375 mL at a constant temperature of 3 7 . 0 ∘ C. As it does so, it absorbs 208 J of heat.The values of q and w for the process will be
(R = 8.314 J/mol K) (ln 7.5 = 2.01)

Options:

Answer:
C
Solution:

Since, temperature remains constant, the process will be isothermal by nature.

For Isothermal reversible expansion:

Δ E = 0 = q + w

q = - w

q = + 2 0 8  J  {heat absorveed so +ve}

w = - 2 0 8  J {expansion so work done by system -ve}

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Thermodynamics - ISubtopic:First law of Thermodynamics
⏱ 2mℹ️ Source: PYQ_2020

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