Africtionless piston–cylinder device contains 2.5 kg of nitrogen at 100 kpa and 250 k. nitrogen is now compressed slowly according to the relation pv1.4 = constant until it reaches a final temperature of 450 k. calculate the work input during this process. the gas constant for nitrogen is r = 0.2968 kj/kg·k.

The work input during this process is 371 kJ.

Explanation:

For a polytropic process, as this one, work can be computed from the formula

Notice that the answer units are kJ and it's negative because the work is done ON the system.

the assestment will probley apele with cause and effect

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card