4.12 - 4 4.12 Take that portion of the methane initially in...

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4.12 Take that portion of the methane initially in the tank that is also in the tank finally to be in the system. This system is isentropic . SS fi = (a) The ideal gas solution SSTT P P N PV RT N PV RT N RT NN N fi fi f i RC i i i f f f p =⇒= F H G I K J = F H I K = ⇒= = = = =−= 300 35 70 1502 1964 6 mol; 1962 17684 8 314 36 . . .. . . K = mol m o l (b) Using Figure 2.4-2. 70 bar 7 MPa, T = 300 K ± . ± if == 505 kJ kg K ± ., . . . Vm N ii i = = × = 00195 07 3590 kg. 35.90 kg
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