1
JEE Main 2021 (Online) 25th July Evening Shift
Numerical
+4
-1
A system consists of two types of gas molecules A and B having same number density 2 $$\times$$ 1025/m3. The diameter of A and B are 10 $$\mathop A\limits^o$$ and 5 $$\mathop A\limits^o$$ respectively. They suffer collision at room temperature. The ratio of average distance covered by the molecule A to that of B between two successive collision is ____________ $$\times$$ 10$$-$$2
2
JEE Main 2021 (Online) 22th July Evening Shift
Numerical
+4
-1
In 5 minutes, a body cools from 75$$^\circ$$C to 65$$^\circ$$C at room temperature of 25$$^\circ$$C. The temperature of body at the end of next 5 minutes is _________$$^\circ$$ C.
3
JEE Main 2021 (Online) 20th July Evening Shift
Numerical
+4
-1
One mole of an ideal gas at 27$$^\circ$$ is taken from A to B as shown in the given PV indicator diagram. The work done by the system will be _________ $$\times$$ 10$$-$$1 J. [Given : R = 8.3 J/mole K, ln2 = 0.6931] (Round off to the nearest integer)

4
JEE Main 2021 (Online) 20th July Morning Shift
Numerical
+4
-1
In the reported figure, heat energy absorbed by a system in going through a cyclic process is ___________ $$\pi$$J.

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