Question

18. What is the density of N2, gas at 227°C, and 5.00
atm pressure ? (R = 0.0821 atm K-1 mol-1)
(1) 0.29 g/ml (2) 1.40 g/ml
(3) 2.81 g/ml
(4) 3.41 g/ml
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Answer 1

T = 227 + 273 =500 k

D = pm ÷ RT

D = 5 × 28 ÷ 0.0821 × 500

D = 3.41

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