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JEE Main levelSingle correct optionDifficulty 2 of 3ig128

At $273 K$ and $1 atm$ the density of a gas is $d$ . At $546 K$ and $4 atm$ its density is

A $2 d$
B $8 d$
C $d /2$
D $4 d$

Answer: A

d \propto P / T

. New density

= d \times \frac{4}{1} \times \frac{273}{546} = 2 d

.

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