JEE Main 2020 (Online) 2nd September Morning Slot | Heat and Thermodynamics Question 190 | Physics

JEE Main 2020 (Online) 2nd September Morning Slot

Numerical

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An engine takes in 5 moles of air at 20^oC and 1 atm, and compresses it adiabatically to 1/10^th of the original volume. Assuming air to be a diatomic ideal gas made up of rigid molecules, the change in its internal energy during this process comes out to be X kJ. The value of X to the nearest integer is________.

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JEE Main 2020 (Online) 9th January Evening Slot

Numerical

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Starting at temperature 300 K, one mole of an
ideal diatomic gas ($$\gamma $$ = 1.4) is first compressed
adiabatically from volume V₁ to V₂ = $${{{V_1}} \over {16}}$$. It is
then allowed to expand isobarically to volume 2V₂. If all the processes are the quasi-static then
the final temperature of the gas (in ^oK) is (to the nearest integer) _____.

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JEE Main 2020 (Online) 8th January Evening Slot

Numerical

-0

Three containers C₁, C₂ and C₃ have water at different temperatures. The table below shows the final temperature T when different amounts of water (given in litres) are taken from each containers and mixed (assume no loss of heat during the process) JEE Main 2020 (Online) 8th January Evening Slot Physics - Heat and Thermodynamics Question 195 English

JEE Main 2020 (Online) 8th January Evening Slot Physics - Heat and Thermodynamics Question 195 English

The value of $$\theta $$ (in °C to the nearest integer) is ..........

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JEE Main 2020 (Online) 7th January Evening Slot

Numerical

-0

M grams of steam at 100^oC is mixed with 200 g of ice at its melting point in a thermally insulated container. If it produced liquid water at 40^oC [heat of vaporization of water is 540 cal/g and heat of fusion of ice is 80 cal/g] the value of M is ____

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