123 005w of heat is removed from water vapour (at 373k) condensing on the outer surfaces (at 363k) of an array of cylinders of length 0.6m and diameter 0.05m. how many cylinders are needed if the heat transfer coefficient is 3000w/m2k? hints: round off to the nearest integer and use newton's law of cooling.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: