1

JEE Main 2021 (Online) 25th July Morning Shift

Numerical

+4

-1

A home owner uses 4.00 $$\times$$ 10

(Given R = 0.083 L atm K

^{3}m^{3}of methane (CH_{4}) gas, (assume CH_{4}is an ideal gas) in a year to heat his home. Under the pressure of 1.0 atm and 300 K, mass of gas used is x $$\times$$ 10^{5}g. The value of x is __________. (Nearest integer)(Given R = 0.083 L atm K

^{$$-$$1}mol^{$$-$$1})Your input ____

2

JEE Main 2021 (Online) 20th July Evening Shift

Numerical

+4

-1

The vapour pressures of A and B at 25$$^\circ$$C are 90 mm Hg and 15 mm Hg respectively. If A and B are mixed such that the mole fraction of A in the mixture is 0.6, then the mole fraction of B in the vapour phase is x $$\times$$ 10

^{$$-$$1}. The value of x is ___________. (Nearest integer)Your input ____

3

JEE Main 2021 (Online) 17th March Evening Shift

Numerical

+4

-1

The number of chlorine atoms in 20 mL of chlorine gas at STP is _________ 10

[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol

^{21}. (Round off to the Nearest Integer).[Assume chlorine is an ideal gas at STP

R = 0.083 L bar mol

^{$$-$$1}K^{$$-$$1}, N_{A}= 6.023 $$\times$$ 10^{23}]Your input ____

4

JEE Main 2021 (Online) 17th March Evening Shift

Numerical

+4

-1

Consider the reaction

$$N_{2}O_{4}\left( g\right) \rightleftharpoons 2NO_{2}\left( g\right) $$

The temperature at which K

$$N_{2}O_{4}\left( g\right) \rightleftharpoons 2NO_{2}\left( g\right) $$

The temperature at which K

_{C}= 20.4 and K_{P}= 600.1, is ____________ K. (Round off to the Nearest Integer). [Assume all gases are ideal and R = 0.0831 L bar K^{$$-$$1}mol^{$$-$$1}]Your input ____

Questions Asked from Gaseous State (Numerical)

Number in Brackets after Paper Indicates No. of Questions

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