Mathcad - Eje4 Guia
1
W Q m 1.2 := Estado 2 Estado 1 T cte = P1 150 := en kPa P2 600 := en kPa T1 12 273.15 + := T2 T1 285.15 = := T T1 285.15 = := 1ra ley m u1 ⋅ W + Q - m u2 ⋅ = W Q - m u2 u1 - ( ) ⋅ = W m v Pv () ⌠ ⌡ d ⋅ = W Q - 0 = T Pv ⋅ R = cte = T1 = Pv () T1 R ⋅ v = W m v T1 R ⋅ v ⌠ ⌡ d ⋅ = R 0.287 := m 1.2 = T1 285.15 = v1 R T1 ⋅ P1 := v2 R T2 ⋅ P2 := v1 0.546 = v2 0.136 = W mR ⋅ T1 ⋅ ln v2 v1 ⋅ := W 136.142 - = kJoule
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Transcript of Mathcad - Eje4 Guia
W
Q
m 1.2:=
Estado 2Estado 1 T cte=
P1 150:= en kPa P2 600:= en kPaT1 12 273.15+:=
T2 T1 285.15=:=T T1 285.15=:=
1ra leym u1⋅ W+ Q− m u2⋅=
W Q− m u2 u1−( )⋅=W m vP v( )
⌠⌡
d⋅=W Q− 0=
TP v⋅R
= cte= T1=
P v( )T1 R⋅
v=
W m vT1 R⋅
v
⌠⌡
d⋅=
R 0.287:= m 1.2= T1 285.15=
v1R T1⋅
P1:=
v2R T2⋅
P2:=
v1 0.546=v2 0.136=
W m R⋅ T1⋅ lnv2
v1
⋅:=
W 136.142−= kJoule
