Q JEE MAIN 2020

An engine takes in 5 moles of air at $20^{\circ} \mathrm{C}$ and 1 atm , and compresses it adiabatically to...

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Q JEE MAIN 2020

A heat engine is involved with exchange of heat of 1915 J, – 40J, + 125 J and –Q J,...

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Q JEE MAIN 2019

A diatomic gas with rigid molecules does 10 J of work when expanded at constant pressure. What would be the...

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Q JEE MAIN 2020

Three different processes that can occur in an ideal monoatomic gas are shown in the P vs V diagram. The...

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Q JEE MAIN 2019

A Carnot engine has an efficiency of $\frac{1}{6}$. When the temperature of the sink is reduced by $62^{\circ} \mathrm{C}$, its...

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Q JEE MAIN 2020

Molecules of an ideal gas are known to have three translational degrees of freedom and two rotational degrees of freedom....

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Q JEE MAIN 2020

Which of the following is an equivalent cyclic process corresponding to the thermodynamic cyclic given in the figure? where, $...

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Q JEE-MAIN 2020

In an adiabatic process, the density of a diatomic gas becomes 32 times its initial value. The final pressure of...

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Q JEE MAIN 2020

The change in the magnitude of the volume of an ideal gas when a small additional pressure $\Delta \mathrm{P}$ is...

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Q JEE MAIN 2020

Starting at temperature 300 K , one mole of an ideal diatomic gas ( $\gamma=1.4$ ) is first compressed adiabatically...

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Q JEE-MAIN 2020

If minimum possible work is done by a refrigerator in converting 100 grams of water at 0°C to ice, how...

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Q JEE MAIN 2021

Data given for the following reaction is as follows:

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Q JEE-MAIN 2020

To raise the temperature of a certain mass of gas by 50°C at a constant pressure, 160 calories of heat...

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Q JEE MAIN 2020

A Carnot engine operates between two reservoirs of temperatures 900 K and 300 K. The engine performs 1200 J of...

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Q JEE MAIN 2020

Two moles of an ideal gas with $\frac{C_P}{C_V}=\frac{5}{3}$ are mixed with 3 moles of another ideal gas with $\frac{\mathrm{C}_{\mathrm{P}}}{\mathrm{C}_{\mathrm{V}}}=\frac{4}{3}$. The...

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Q JEE MAIN 2021

Thermodynamic process is shown below on a P-V diagram for one mole of an ideal gas. If $\mathrm{V}_2=2 \mathrm{~V}_1$ then...

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Q JEE MAIN 2022

2.2 g of nitrous oxide $\left(\mathrm{N}_2 \mathrm{O}\right)$ gas is cooled at a constant pressure of 1 atm from 310 K...

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Q JEE MAIN 2022

300 cal . of heat is given to a heat engine and it rejects 225 cal . of heat. If...

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Q JEE MAIN 2022

In a carnot engine, the temperature of reservoir is $527^{\circ} \mathrm{C}$ and that of sink is 200 K. If the...

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Q JEE MAIN 2022

A Carnot engine whose heat sinks at $27^{\circ} \mathrm{C}$, has an efficiency of $25 \%$. By how many degrees should...

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Q JEE-MAIN 2022

A cylinder of fixed capacity of 44.8 litres contains helium gas at standard temperature and pressure. The amount of heat...

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Q JEE MAIN 2022

A thermally insulated vessel contains an ideal gas of molecular mass M and ratio of specific heats 1.4. Vessel is...

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Q JEE MAIN 2022

The efficiency of a Carnot's engine, working between steam point and ice point, will be :

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Q JEE MAIN 2023

For complete combustion of ethene. $\mathrm{C}_2 \mathrm{H}_4(\mathrm{~g})+3 \mathrm{O}_2(\mathrm{~g}) 2 \mathrm{CO}_2(\mathrm{~g})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{l})$ the amount of heat produced as measured in...

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Q JEE MAIN

The pressure and volume of an ideal gas are related as (Constant). The work done when the gas is taken...

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Q JEE MAIN

Two different adiabatic paths for the same gas intersect two isothermal curves as shown in P-V diagram. The relation between...

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A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room...

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Two moles a monoatomic gas is mixed with six moles of a diatomic gas. The molar specific heat of the...

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