Oxygen gas at 3.0 atm and 30°C is diffusing through a membrane of Polyethylene 3.0 mm thick and Nylon 7.0 mm thick in series. The partial pressure at the other side of the
two films is 0.5 atm, assuming no other resistances, calculate the flux NA at steady state.

If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above