Stephen A. Lawrence <[email protected]> wrote:
> The steam can NOT exit the tube going faster unless IT IS HOTTER. > > You've got a fixed flow rate in moles per minute, man -- doesn't that mean > anything to you? > It isn't fixed at the outlet. It comes out as fast as it likes. Only the inlet rate is fixed. Let's turn it back vertically again. Suppose you have an open pot of boiling water. You pour make up water from the tap into a pot at a fixed rate. The steam might leave slowly in which case the pot will overflow, with hot water pouring out onto your stove. Or if the flame is hot enough, the water molecules "spread out" so that more water leaves until the pot boils dry. From then on, as soon as the make-up water falls into the pot, it flashes into steam. However, when you measure the steam temperature it is always just over 100 deg C. Lower the atmospheric pressure, and the temperature drops. The Rossi tube overflows at first, with water, then it spits out water and steam mixed together. It doesn't turn into dry steam until you reach a steady state like the pot boiled dry with new water flowing into it and flashing into steam. - Jed
