1
JEE Main 2020 (Online) 9th January Evening Slot
Numerical
+4
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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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2
JEE Main 2020 (Online) 8th January Evening Slot
Numerical
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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 239 English The value of $$\theta $$ (in °C to the nearest integer) is ..........
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3
JEE Main 2020 (Online) 7th January Evening Slot
Numerical
+4
-0
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M grams of steam at 100oC is mixed with 200 g of ice at its melting point in a thermally insulated container. If it produced liquid water at 40oC [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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4
JEE Main 2020 (Online) 7th January Morning Slot
Numerical
+4
-0
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A non-isotropic solid metal cube has coefficients of linear expansion as :
5 $$ \times $$ 10-5/oC along the x-axis and 5 $$ \times $$ 10-6/oC along the y and the z-axis. If the coefficient of volume expansion of the solid is C $$ \times $$ 10-6/oC then the value of C is
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