One-half kmol of carbon monoxide (co) in a piston- cylinder assembly undergoes a process from p1 = 150 kpa, t1 = 300 k to p2 = 500 kpa, t2 = 420 k. for the process, w = -300 kj. employing the ideal gas model, determine: (a) the heat transfer, in kl. (b) the change in entropy, in kj/k.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer