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The mass of a litre of dry air at N.T.P ...

The mass of a litre of dry air at N.T.P is 1.293 g. Find the mass of 3 litres of air at `117^(@)C` and a pressure of 4 atmospheres ?

A

10.86 g

B

5.6 g

C

6.4 g

D

7.2 g

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