One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 8th
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Single-choice question: In the water ring pump used in the calcium carbide process for acetylene production, the medium water plays a role in energy transfer during operation. If the water temperature is (), the vapor pressure of water in the acetylene gas increases, which reduces the transport capacity of the acetylene gas and also accelerates the wear of the machine’s components. Water temperature ( ) increases the solubility of acetylene in water, thereby increasing the amount of acetylene gas that is lost. A. Too low, increase B. Increase, increase C. Too low, too low D. Increase, too low Answer: D, Increase, too low
In the water ring pump used in the calcium carbide process for acetylene production, the medium water plays a role in energy transfer during operation. If the water temperature rises, the vapor pressure of water in the acetylene gas increases, which reduces the capacity for transporting acetylene gas; moreover, it accelerates the wear and tear of the machine’s components. Water temperature (too low) increases the solubility of acetylene in water, leading to greater losses of acetylene gas. A、Too low, increase B、Increase, increase C、Too low, too low D、Increase, too low