常压蒸馏装置中冷凝管的选择,蒸馏正溴丁烷( bp 101.6 °C )用( ),蒸馏硝基苯( bp 210 °C )用( )
A.
空气冷凝管 蛇形冷凝管
B.
直形冷凝管 球形冷凝管
C.
直行冷凝管 直形冷凝管
D.
直行冷凝管 空气冷凝管
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
皮皮学刷刷变学霸
举一反三
【单选题】If a project has a net present value equal to zero, then: I. the present value of the cash inflows exceeds the initial cost of the project. II. the project produces a rate of return that just equals t...
【单选题】A portfolio manager is analyzing a $2000000 venture capital investment. If the project succeeds until the end of the sixth year, the net present value (NPV) of the project is $ 6587000. The project ha...
【单选题】A project has the following cash flows.T0 Outflow $110,000T1-4 Inflow $40,000At the company's cost of capital of 10% the NPV of the project is $16,800.Applying sensitivity analysis to t...
【单选题】The networking vendor has contacted the project manager to inform her that the recent earthquake will inpact the delivery of critical components.The project team meets to determine the impact on the o...