A freezer is used to cool a region in its interior to 0 C. If the room outside the freezer is at 20 C, what is the coefficient of performance of a Carnot refrigerator.

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.