1
JEE Main 2020 (Online) 5th September Evening Slot
Numerical
+4
-0
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).
2
JEE Main 2020 (Online) 4th September Evening Slot
Numerical
+4
-0
The change in the magnitude of the volume of an ideal gas when a small additional pressure $$\Delta$$P is applied at a constant temperature, is the same as the change when the temperature is reduced by a small quantity $$\Delta$$T at constant pressure. The initial temperature and pressure of the gas were 300 K and 2 atm. respectively.
If |$$\Delta$$T| = C|$$\Delta$$P| then value of C in (K/atm.) is _________.
3
JEE Main 2020 (Online) 4th September Morning Slot
Numerical
+4
-0
A closed vessel contains 0.1 mole of a monoatomic ideal gas at 200 K. If 0.05 mole of the same gas at 400 K is added to it, the final equilibrium temperature (in K) of the gas in the vessel will be close to _______.
4
JEE Main 2020 (Online) 3rd September Evening Slot
Numerical
+4
-0
Out of Syllabus
If minimum possible work is done by a refrigerator in converting 100 grams of water at 0oC to ice, how much heat (in calories) is released to the surroundings at temperature 27oC (Latent heat of ice = 80 Cal/gram) to the nearest integer ?