15 JEE Main 2020 Thermodynamics (C) previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2020 previous-year questions from the Thermodynamics (C) chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Thermodynamics (C) chapter hub.
Five moles of an ideal gas at 1 bar and 298   K is expanded into vacuum to double the volume. The work done is :
The Gibbs energy change (in J ) for the given reaction at Cu 2 + = Sn 2 + = 1  M and 298   K is : Cu s + Sn…
The heat of combustion of ethanol into carbon dioxides and water is - 327 Kcal at constant pressure. The heat evolved (…
For the reaction; A l → 2 B g Δ U = 2.1 k c a l , Δ S = 20 c a l K - 1 at 300 K . Hence Δ G in k c…
The true statement amongst the following is:
The internal energy change (in J ) when 90   g of water undergoes complete evaporation at 100 ° C is ........…
The standard heat of formation ∆ f H 298 0 of ethane (in k J / m o l ), if the heat of combustion of ethane, hydr…
The variation of equilibrium constant with temperature is given below : Temperature EquilibriumConstant T 1 = 25 °…
The magnitude of work done by a gas that undergoes a reversible expansion along the path A B C shown in the figure is _…
At constant volume, 4   m o l of an ideal gas when heated from 300 K to 500 K changes its internal energy by 5000…
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