1.21 kg air (R = 287 J/kg K) initially at 35oC is compressed polytropically in an Engine. During the process, the final pressure is six times the initial pressure and the final volume is one-fourth of initial volume. The nonflow work of compression is, a 188 b ─183 c ─188 d 183 0.5 kg carbon dioxide gas (R = 189 J/kg K, k = 1.288) initially at 75oC is compressed polytropically in a compressor. During the process, the final pressure is 5 times the initial pressure and the final volume is one-fourth of initial volume. The heat is, a 22.5 b 24.5 c─22.5 d ─24.5 1.36 kg oxygen (M = 32 kg/mol, CP = 0.9198) initially at 150oC is compressed poly
1.21 kg air (R = 287 J/kg K) initially at 35oC is compressed polytropically in an Engine. During the process, the final pressure is six times the initial pressure and the final volume is one-fourth of initial volume. The nonflow work of compression is,
a 188 b ─183 c ─188 d 183
0.5 kg carbon dioxide gas (R = 189 J/kg K, k = 1.288) initially at 75oC is compressed polytropically in a compressor. During the process, the final pressure is 5 times the initial pressure and the final volume is one-fourth of initial volume. The heat is,
a 22.5 b 24.5 c─22.5 d ─24.5
1.36 kg oxygen (M = 32 kg/mol, CP = 0.9198) initially at 150oC is compressed polytropically in a compressor. During the process, the final pressure is six times the initial pressure and the final volume is one-fourth of initial volume. The internal energy is,
a 185 b ─185 c ─190 d 190
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