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Diffstat (limited to '3845/CH15/EX15.3/Ex15_3.sce')
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diff --git a/3845/CH15/EX15.3/Ex15_3.sce b/3845/CH15/EX15.3/Ex15_3.sce new file mode 100644 index 000000000..853a15d86 --- /dev/null +++ b/3845/CH15/EX15.3/Ex15_3.sce @@ -0,0 +1,15 @@ +//Example 15.3
+Q_h=2.5*10^14;//Heat transfer from coal (J)
+Q_c=1.48*10^14;//Heat transfer into the environment (J)
+W=Q_h-Q_c;//Work done (J)
+printf('a.Work done by the power station = %0.2e J',W)
+Eff=W/Q_h;//Efficiency
+printf('\nb.Efficiency of the power station = %0.3f or %0.1f%%',Eff,Eff*100)
+q=2.5*10^6;//Heat transfer per kg of coal (J/kg)
+m_coal=Q_h/q;//Mass of coal consumed per day (kg)
+//If 12kg of coal results in the production of 44kg of CO2
+m_CO2=m_coal*44/12;//Amount of CO2 produced daily (kg)
+printf('\nc.Amount of CO2 produced daily = %0.1e kg or %0.1f metric tons',m_CO2,m_CO2/1000)
+//Answer varies due to round off error
+//Openstax - College Physics
+//Download for free at http://cnx.org/content/col11406/latest
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