Why does this error read

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clear all
P1 = 101 %pressure in kpa

P1 = 101

T1 = 298%temperature in kelvin

T1 = 298

n = 1.4

n = 1.4000

Cp = 1.004

Cp = 1.0040

Cv = 0.717

Cv = 0.7170

R = 0.287 %gas constant in kJ/kg*k

R = 0.2870

v1 = R * T1/P1 %specific volume in m^3/kg

v1 = 0.8468

IsentConst1 = P1 * v1^n

IsentConst1 = 80.0219

P2 = 2828 %outlet compressor/inlet combuster pressure

P2 = 2828

T2 = ((P2 / P1)^((n-1)/n)) * (T1)

T2 = 772.1292

v2 = (R * T2) / P2

v2 = 0.0784

Wc = Cp * (T2 - T1)

Wc = 476.0257

P3 = P2

P3 = 2828

T3 = 2260 

T3 = 2260

v3 = R * T3 / P3

v3 = 0.2294

IsentConst2 = P3 * v3^n

IsentConst2 = 359.9107

Wt = Wc

Wt = 476.0257

T4 = (Wt / Cp) + T3

T4 = 2.7341e+03

v4 = ((P3 * v3^n)/(R * T4)^(1/n-1))

v4 = 2.4169e+03

P4 = R * T4 /v4

P4 = 0.3247

IsentConst3 =  P4 * v4^n

IsentConst3 = 1.7701e+04

u4 = Cv * T4

u4 = 1.9604e+03

h4 = u4 + P4 * v4

h4 = 2.7451e+03

P5 = P1

P5 = 101

v5 = (P4 *v4^n / P5)^(1/n)

v5 = 40.0524

T5 = P5 *v5 / R

T5 = 1.4095e+04

u5 = Cv * T5

u5 = 1.0106e+04

h5 = u5 + P5 * v5

h5 = 1.4151e+04

dh = (h5 - h4)*1000 %performance parameter

dh = 1.1406e+07

P = P1:0.001:P2;
v = v1:-0.001:v2;
plot(v,P,'r','lineWidth',1.5)

Error using plot
Vectors must be the same length.

Answer 1

[SAI SRUJAN]

Hi Nick Olibrice,

From my understanding of your question,you are facing an error using plot.I hope the following documentation which has a similar use case may give you an insight of how to use the function plot,

https://www.mathworks.com/help/matlab/ref/plot.html#btzpm1x