Correct answer
C. A closed system with changes in composition
Explanation
The correct answer is A closed system with changes in composition.
Green house gases blanket/block the infrared radiation from earth’s surface to the atmosphere leading to its progressive warming up. Which of the following gases does not exhibit green house effect?
Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter)?
Cavitation in a centrifugal pump can be avoided by keeping the________?
For an ideal liquid solution, which of the following is unity?
Which of the following is called “blue gas”?
Which of the following material handling equipments is not suitable for moving materials in varying paths?