A pressure gauge was attached to a flask filled with carbon dioxide under a slight overpressure. The gas was then discharged through a small hole, the time taken for the

pressure to drop from 75 cm to 50 cm was 52.65 seconds. When the experiment was

repeated with nitrogen (M = 28 g/mol), the same pressure drop was observed after 42

seconds. the molar mass of carbon dioxide

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false