A rigid tank with a volume of .03 m3 is evaluated to a low pressure and then place into a low temperature bath at 244k. .05 of pure solid water is introduced into the tank. At 244k, the entropy change between saturated water vapor and ice is 11.62 j/g. k and the vapor pressure of ice is 42.8 N/m2 .calculate u and Q

When subject to a steady load (within elastic range) over a long period of time, what is the major difference in material behavoir between steel and plastic?

At steady state, air at 200 kpa, 325 k, and mass flow rate of 0.5 kg/s enters an insulated duct having differing inlet and exit cross-sectional areas. the inlet cross-sectional area is 6 cm2. at the duct exit, the pressure of the air is 100 kpa and the velocity is 250 m/s. neglecting potential energy effects and modeling air as an 1.008 kj/kg k, determine ideal gas with constant cp = (a) the velocity of the air at the inlet, in m/s. (b) the temperature of the air at the exit, in k. (c) the exit cross-sectional area, in cm2

List 3 options on how to reduce knocking problens during engine process,