1
JEE Main 2021 (Online) 26th February Morning Shift
Numerical
+4
-1
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]
2
JEE Main 2021 (Online) 26th February Morning Shift
Numerical
+4
-1
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)
3
JEE Main 2021 (Online) 25th February Morning Shift
Numerical
+4
-1
A car tyre is filled with nitrogen gas at 35 psi at 27$$^\circ$$C. It will burst if pressure exceeds 40 psi. The temperature in $$^\circ$$C at which the car tyre will burst is _________. (Rounded off to the nearest integer)
4
JEE Main 2021 (Online) 24th February Evening Shift
Numerical
+4
-1
The volume occupied by 4.75 g of acetylene gas at 50$$^\circ$$C and 740 mmHg pressure is __________ L. (Rounded off to the nearest integer)

[Given R = 0.0826 L atm K$$-$$1 mol$$-$$1]
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