Assume that the working ideal gas is one mole of the molecule H2, at a temperature such that the translational and rotational degrees of freedom are active. V1 = 1 m?, V2 = 0.25 m3, V3 = 0.5 m3, and P1=1 atm. What is the magnitude of the work done for the adiabatic process 1-2 (represented by the line connecting points 1 and 2)? = NDOF/2+1 Npor/2 The equation of the line is PVY=constant, where degrees of freedom. and NDOF is the number of active (a) 38000 (b) 75000 J x (C) 1.9 J (d) 380000 (e) 190000 ✓ 0% As the gas expands in step 3-4, from an initial volume V3 to a final volume of V1, by what factor does the average speed (rms velocity) of the gas molecules change? (a) Vrms FINAL = 2-1/2 INITIAL Vrms (b) Vrms FINAL = 2-1/5 INITIAL Vrms C) there is no change to the average molecule speed X ✓0%
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