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  3. 19. 4.5 lbm of water at 158 of is mixed with 8.3 l

19. 4.5 lbm of water at 158 oF is mixed with 8.3 lbm of water at...

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Mechanical Engineering

19. 4.5 lbm of water at 158 oF is mixed with 8.3 lbmof water at 30.9 oF. If the specific heat of water is0.8 BTU/lbm-oR, find the resulting temperature of themixture in oF.

State your answer to one decimal place. Example: 63.5

20. 2.4 lbm of water at 136 oF is mixed with 9.1 lbmof water at 44.9 oF. If the specific heat of water is0.8 BTU/lbm-oR, find the sum of the change in entropy,in BTU/oR, for the 2.4 lbm of water and 9.1 lbm ofwater.

State your answer to four decimal places. Example: 0.6357

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