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Question: x the entropy change as for an ideal gas is...

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(x) The entropy change AS, for an ideal gas is given by dT 2 dV TI volume and R 8.314 Determine the entropy change when a gas expands from 1 litre to 3 litres for a temperature rise from 100K to 400K given that: C,-45+6x 103T+ 8 x 10 T (y) The p.d. between boundaries a and b of an electric field is given by: 2x rEoEr If a 10, b 20, 2 x 106 Coulombs, o 8.85 x 10 12 and er 2.77 Show that V 9kV. (z) The average value of a complex voltage waveform is given by: Evaluate Vav correct to 2 decimal places.
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