Answer:
Industrial revolution too bad at english languge not fleunt so if say a whole story of this i will not make secene but answer is to it industrial revolution.
Explanation:
Answer:
Explanation:
given data:
cp= 1.13 kJ/kg K
CV = 0.83 kJ/kg K
FROM ENERGY BALANCE EQUATION
sir specific volume is given as
volume of flow rate
Answer:
123.9 Btu
Explanation:
The energy balance on the air is:
∆E = E2 − E1 = ∆KE + ∆PE + ∆U = Q + W
ignore ∆KE and ∆PE,
W = ∆U − Q = m(u2 − u1) − Q; (u2 − u1 = 51.94 Btu/lb)
ideal gas properties is attached
W = (2 lb)(143.98 − 92.04) Btu/lb − (− 20 Btu) = 123.9 Btu
u2 − u1 ≈ cv(T2 − T1) = (0.173 Btu/lb°R)(840 − 540)
°R = 51.9 Btu/lb