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The density of He is 0.1784 kg/m^(3) at ...

The density of He is 0.1784 kg/`m^(3)` at STP. If a given mass of He at STP is allowed to expand to 1.5 times its initial volume by changing the temperature and pressure, compute its resultant density.

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The correct Answer is:
`0.1189 kg//m^(3)`
`1kg//m^(3) = 1h//L`. Density is reduced by 1.5 times
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