This chapter is currently out of syllabus
1
JEE Main 2021 (Online) 17th March Evening Shift
Numerical
+4
-1
Out of Syllabus
The number of chlorine atoms in 20 mL of chlorine gas at STP is _________ 1021. (Round off to the Nearest Integer).

[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol$$-$$1 K$$-$$1, NA = 6.023 $$\times$$ 1023]
2
JEE Main 2021 (Online) 17th March Morning Shift
Numerical
+4
-1
Out of Syllabus
The pressure exerted by a non-reactive gaseous mixture of 6.4g of methane and 8.8 g of carbon dioxide in a 10L vessel at 27$$^\circ$$C is __________ kPa. (Round off to the Nearest Integer).

[Assume gases are ideal, R = 8.314 J mol$$-$$1 K$$-$$1

Atomic masses : C : 12.0 u, H : 1.0 u, O : 16.0 u]
3
JEE Main 2021 (Online) 26th February Morning Shift
Numerical
+4
-1
Out of Syllabus
3.12 g of oxygen is adsorbed on 1.2 g of platinum metal. The volume of oxygen adsorbed per gram of the adsorbent at 1 atm and 300 K in L is __________.

[R = 0.0821 L atm K$$-$$1mol$$-$$1]
4
JEE Main 2021 (Online) 26th February Morning Shift
Numerical
+4
-1
Out of Syllabus
A certain gas obeys P(Vm $$-$$ b) = RT. The value of $${\left( {{{\partial Z} \over {\partial P}}} \right)_T}$$ is $${{xb} \over {RT}}$$. The value of x is _________. (Integer answer) (Z : compressibility factor)
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