What is the heat load (Q) on this process in units of BTU? Is this heat transferred to or from the reservoir?
In a large tank with a heat sink/source (a reservoir) you mix three solutions: 10 lbm of pure water, 15 lbm of pure sulfuric acid and 16 lbm of a 40 % (by mole) sulfuric acid solution. By adjusting the reservoir, we can keep the temperature at 100oF throughout the mixing process.
MW Water: 18.02 lbm/lbmol
MW Sulfuric Acid: 98.08 lbm/lbmol
Find the mass of sulfuric acid in the solution:
Find the wt% of sulfuric acid in the original solution:
Find the wt% of sulfurinc acid in the final solution:
From the Chart:
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If additional safety observers are required during the performance of hot work, the safety technician must _____.
a. assume the role of lead observer b. inspect the work area for hazards the day before the work is to be performed c. ask the supervisor if the work area is safe for the permit d. station a trained, qualified worker to scan the area
A proposed heat engine receives heat at 500 K and rejects heat at 350 K. The engine is to produce 100 kW of power from a heat input of 150 kW. Is this process possible?
Given: Proposed: TH = 500 K; TC = 350 K; Q?H=150 kW; W?=100 kW What will be an ideal response?
Depending on the design of the rocker arm, they have the ability to change valve duration with different ratios.
Answer the following statement true (T) or false (F)
Front loading of a contractor's bid is not always an illegal form of unbalancing a bid
A. True B. False