A cylinder contains 12kg of gas at press...

A cylinder contains 12kg of gas at pressure of `10^7` N/`m^2`. The quantity of gas taken out of the cylinder, if final pressure is `3 xx 10^6 N//m^2` , will be (temperature of gas is constant)

3.6 kg

8.4 kg

4.6 kg

5.2 kg

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