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JEE Main levelSingle correct optionDifficulty 2 of 3ig184

At constant temperature, a gas at $1.0 atm$ in a $600 mL$ vessel is connected to an evacuated vessel; the final pressure is $0.40 atm$ . The volume of the second vessel is

A $900 mL$
B $1500 mL$
C $240 mL$
D $1000 mL$

Answer: A

Boyle:

1.0 \times 600 = 0.40 \times (600 + V)

, so

600 + V = 1500

,

V = 900 mL

.

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