Thermodynamics Question 9 Follow Link Below for question ple

Thermodynamics

Question 9: Follow Link Below for question please.

http://imgur.com/Cxf1knV

Verify that both y_1(t) = 1 - t and y_2(t) = _r/4 solutions of the initial value problem Where are these solutions valid? Explain why the existence of two solutions of the given problem does not contradict the uniqueness part of Theorem 2.4.2. Show that

Solution

From Superheated refrigerant-134a table A-13 ,

at P=900 Kpa and T=40^oC

Specific Volume v= 0.023375 m³/kg

specific energy u= 253.13 KJ/Kg

a)

Volume of the vessel

V=mv =3.1*0.023375

V=0.0724625 m³

b)

Total Internal energy

U=mu =2*253.13

U=506.26 KJ