00:01
So, here in this question, using first law of thermodynamics, using first law of thermodynamics of thermodynamics, dynamics for open system, for open system, which in general form is w is equals to m h2 minus h1 plus v2 square minus v1 square by 2 plus z, z2 minus z1 minus q.
00:45
Q, now since there is no change in elevation, that is, z2 minus z1 is equals to 0 and g is the acceleration due to gravity, the term z2 minus z1 can be ignored.
01:03
Then, also, q is given as minus 1 kilowatt, which means that 1 kilowatt heat is being removed.
01:12
Then, we calculate the change in kinetic energy the kinetic energy per unit mass at the inlet and outlet can be done as v square by 2 calculate using v square by 2 that is kinetic energy so the kinetic energy 1 is v 1 square by 2 and that is equals to 5 square by 2 that is 12 .5 meter 12 .5 meter square second square...