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Question
The kinetic energy of nitrogen per unit mass at 300 K is 2.5 × 106 J/kg. Find the kinetic energy of 4 kg oxygen at 600 K. (Molecular weight of nitrogen = 28, Molecular weight of oxygen = 32)
Solution
m1 = 1 kg, T1 = 300 K, K1 = 2.5 × 106 J
m2 = 4 kg, T2 = 600 K, M1 = 28, M2 = 32, K2 = ?
K =
The kinetic energy of 4 kg oxygen at 600 K is 17.5 × 106 J.
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