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2019-06-10View Original

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选择题:关于节流膨胀, 下列说法正确的是 (A) 节流膨胀是绝热可逆过程 (B)节流膨胀中系统的内能变化 (C)节流膨胀中系统的焓值改变 (D)节流过程中多孔塞两边的压力不断变化 答案:B 提示:答案回复可见
Reply #22019-06-10
(B)节流膨胀中系统的内能变化
Reply #32019-06-10
(B)节流膨胀中系统的内能变化
Reply #42019-06-10
(B)节流膨胀中系统的内能变化
Reply #52019-06-10
(B)节流膨胀中系统的内能变化
Reply #62019-06-10
(B)节流膨胀中系统的内能变化
Reply #72019-06-10
(B)节流膨胀中系统的内能变化
Reply #82019-06-10
(D)节流过程中多孔塞两边的压力不断变化
Reply #92019-06-10
本帖最后由 sdscj0122 于 2019-6-10 16:02 编辑 B

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