(a) show that in a joule-thomson expansion, temperature change occurs if no (av/0t)p v/t (b) show that ду иср 3d т -1. in the region of moderate pressures, the equation of state of 1 mol of gas may be written pv rt b'p+ c'p2, where the second and third virial coefficients b' and c' are functions of t only (c) show that, as the pressure approaches zero, db dт — в'. иср — т (d) show that the equation of the inversion curve is c b'- t(db'/dt) p=c t(dc' |dt)

Gshusgshsvsvshhdsudu

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current

Ultra-high temperature (uht)