1
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 _________.
Your input ____
2
JEE Main 2020 (Online) 6th September Evening Slot
Numerical
+4
-0
Out of Syllabus
Change Language
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 228 English
Your input ____
3
JEE Main 2020 (Online) 6th September Morning Slot
Numerical
+4
-0
Change Language
Initially a gas of diatomic molecules is contained in a cylinder of volume V1 at a pressure P1 and temperature 250 K. Assuming that 25% of the molecules get dissociated causing a change in number of moles. The pressure of the resulting gas at temperature 2000 K, when contained in a volume 2V1 is given by P2 . The ratio $${{{P_2}} \over {{P_1}}}$$ is ________.
Your input ____
4
JEE Main 2020 (Online) 5th September Evening Slot
Numerical
+4
-0
Change Language
Nitrogen gas is at 300oC temperature. The temperature (in K) at which the rms speed of a H2 molecule would be equal to the rms speed of a nitrogen molecule, is _______.
(Molar mass of N2 gas 28 g).
Your input ____
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12