Ninety grams of dry, saturated steam at 70 kpa is heated at constant pressure until its volume is 0.25 m3. it is then heated at constant volume until its pressure reaches 100 kpa. calculate the q from the initial to final states. is this transfer into or out of the steam? sketch the process on p, v. show the vapor dome and the qualitative location of the initial and final states.

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.

The sum of the normal stresses does not change as the stress state rotates through an angle. a)-trune b)- false