Answer Happy

1. Unit of work is ? a Watt (W) b) Wattsekunda (Ws) C) Pascal (Pa) d) Joulesekunda (Js) Technical work for izochoric process (v=const) is : a) W= V. (p1 - P2) where: p - pressure b) Wų = V. (T1-T2) T - temperature c) Wt = 0 V - specific volume d) Wų = p . (V1 - V2) 2. . 3. = 9 - heat Mathematical equation No.1 of I.law of thermodynamics is ? a) dq = du + dh b dq = du + Wt u - internal energy c) dq = dh + WV h - enthalpy d) da = du + W W, - volume work, wt - technical work 4 Equation of state for 1 kmol of ideal gas is? a) PV = mRT where : r - specific gas constant (J/kg K) b) pv = rT R- univesal gas constant (J/Kmol K) c) pVm = rT Vm - molar volume (mp3) d) pVm = RT = 5 abcd Otto cycle consist of these thermodynamics prosess 2 adiabat 2 izoterm ) 2 adiabat 2 izochor ) 2 izoterm 2 izochor ) 2 izoterm 2 polytrop Carnot cycle consist of these thermodynamics process 2 isoentropic 2 isotermal ) 2 isoentropic 2 isobaric ) 2 isothermal 2 isochoric d) 2 isoentropic 2 polytropic 6 abcd