A tank is used for delivering a volume of 10 L and pressure 2 × 10⁷ Pa. The empty tank contains 10 L of air at 35⁰C and 1 at m. The tank is filled with hot air from a compressor at temperature 50⁰C and pressure 2 × 10⁷ Pa. How much air was added? Average molar mass is 28.8 × 10⁻³ kg / mol
1
2.13 kg
2
2 kg
3
2.5kg
4
3 kg
5
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