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Diffstat (limited to '3720/CH2/EX2.3')
| -rw-r--r-- | 3720/CH2/EX2.3/Ex2_3.sce | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/3720/CH2/EX2.3/Ex2_3.sce b/3720/CH2/EX2.3/Ex2_3.sce new file mode 100644 index 000000000..cfea0bd1f --- /dev/null +++ b/3720/CH2/EX2.3/Ex2_3.sce @@ -0,0 +1,25 @@ +// Example 2_3
+clc;clear;funcprot(0);
+//Given values
+T_1=20;// degree celsius
+T_2=50;//degree celsius
+P_1=1;// atm
+P_2=100;//atm
+rho_1=998.0;// The density of water in kg/m^3
+
+//Properties
+//The coefficient of volume expansion at the average temperature T_avg=35°C
+beta=0.337*10^-3;// k^-1
+alpha=4.80*10^-5;//The isothermal compressibility of water in atm^-1
+
+// Calculation
+//(a)
+gradT=(T_2-T_1);// K
+gradrho=-(beta*rho_1*gradT);// The change in density in kg/m^3
+rho_2=rho_1+gradrho;// The density of water at 50°C and 1 atm in kg/m^3
+printf('The density of water at 50°C and 1 atm is rho_2 =%0.0f kg/m^3\n',rho_2);
+//(b)
+gradP=(P_2-P_1);
+gradrho=alpha*rho_1*gradP;// kg/m^3
+rho_2=rho_1+gradrho;//The density of water at 100 atm and 20°C in kg/m^3
+printf('The density of water at 100 atm and 20°C is rho_2 =%0.1f kg/m^3\n',rho_2);
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