(Solved): A 1.2cm-diameter silver sphere initially at 25C is suspended in a room filled with saturated ...

A $$1.2?\mathrm{cm}$$-diameter silver sphere initially at $$25^{?}\mathrm{C}$$ is suspended in a room filled with saturated steam at $$100^{?}\mathrm{C}$$. using the lumped system analysis, determine how long it will take for the temperature of the ball to rise to $$50^{?}\mathrm{C}$$. Also determine the amount of steam that condenses during this process, and verify that the lumped system analysis is applicable. Use (Tables A-3 and A-9) to obtain the properties of the silver and water at specified temperatures.