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JEE Main 2021 (Online) 25th February Morning Shift
Numerical
+4
-1
A monoatomic gas of mass 4.0 u is kept in an insulated container. Container is moving with velocity 30 m/s. If container is suddenly stopped then change in temperature of the gas (R = gas constant) is $${x \over {3R}}$$. Value of x is ___________.
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2
JEE Main 2021 (Online) 25th February Morning Shift
Numerical
+4
-1
In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100$$^\circ$$C to 300$$^\circ$$C will be ___________ nR, where n denotes number of moles of a gas.
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3
JEE Main 2021 (Online) 24th February Evening Shift
Numerical
+4
-1
Change Language
The root mean square speed of molecules of a given mass of a gas at 27$$^\circ$$C and 1 atmosphere pressure is 200 ms$$-$$1. The root mean square speed of molecules of the gas at 127$$^\circ$$C and 2 atmosphere pressure is $${{x \over {\sqrt 3 }}}$$ ms$$-$$1. The value of x will be _________.
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4
JEE Main 2020 (Online) 6th September Evening Slot
Numerical
+4
-0
Out of Syllabus
An engine operates by taking a monoatomic ideal gas through the cycle shown in the figure. The percentage efficiency of the engine is close to __________. JEE Main 2020 (Online) 6th September Evening Slot Physics - Heat and Thermodynamics Question 206 English
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