Lack of adequate drainage in irrigation projects leads to the accumulation of CaCO3 that is responsible for the high pH values above 8.5
Indicate whether the statement is true or false
FALSE
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good electrical connection should _____.
a. last for approximately 90 days without any maintenance or repairs b. be mechanically and electrically secure c. have a resistance of no more than 25 ohms d. have a resistance of no more than 13 ohms
Why is it important for an airport to develop and maintain an effective wildlife management program?
What is a wildlife hazard assessment? Why is it important for an airport operator to manage wildlife attractants?
Which of the following statements is true?
A rigid, adiabatic vessel is initially evacuated. 10 moles of liquid A and 10 moles of liquid B at 298.15 K are injected into the vessel, and this 20 moles of liquid is regarded as the “initial state” of the system. When the vessel reaches equilibrium, both a liquid and a vapor phase are present, and the entire equilibrium VLE mixture inside the vessel is regarded as the “final state” of the system. The reaction A+B?C+D occurs in the liquid phase, but not in the vapor phase. The equilibrium constant for the reaction is 0.4 and the reaction is exothermic. The vapor pressures are 0.12 MPa for compound A, 80kPa for compound B, 0.15 MPa for compound C and 70kPa for compound D. The vapor phase can be modeled as an ideal gas, but the liquid phase can NOT be modeled as an ideal solution.
Refer to the accompanying figure. What changes occur if the stop button is momentarily pressed?
What will be an ideal response?