If 10 kg/min of air are compressed isothermally from P1=96kPa and V1=7.65m^3/min to P3=620kPa, find the work change of entropy and the heat for: a) nonflow process and b) steady flow process with v1=15m/s and v2=60m/s.
f 10 kg/min of air are compressed isothermally from P1=96kPa. Find the work change entropy and the heat for
(A) non flow process with v1=15m/s and v2=60m/s
Three pounds of perfect gas with R=38 ft.lb/lb.R and k= 1.667 have 300 Btu of heat added during a reversible nonflow constant pressure change of state. The initial temperature is 100 °F. Determine the
(A) final temperature
(B) change in heat ∆H
(C) W
(D) ∆U
(E) ∆S
A cylindrical drum 2-ft diameter and 4ft height is filled with fluid whose density is 40lb/ft^3.
Determine
(A) the total volume of
(B) its total mass in pounds and slugs
(C) its specific volume and
(D) its specific weight where g=31.90 fps^2
15 cubic ft of air at 300 psia and 420°F at constant volume. What are
(a) the final pressure
(b) the work
(c) the change of internal energy
(d) the transferred heat
(e) the change of enthalpy and
(f) the change entropy?
The pressure below the depth of 25 m of a homogenous fluid is 50.473 psi.
Calculate specific weight in kN/m3,density of fluid in kgm/m3 and its specific
gravity.
Calculate the acceleration of josh riding his bicycle in a straight line that speeds up from 4m/s to 6m/s in 5 seconds
A ball of mass 0.25kg loses one-third of it's velocity when it makes a head on collision with an identical ball W at rest. After the collision , Q moves off with a speed of 2ms-1in original direction of P . Calculate the initial velocity of P
discuss the consequences of poor health and safety when using ionising and non-ionising radiation
A heart engine takes in 320 j of energy from a hot reservoir and performs 25.0 J of work in each cycle.find
(I). The efficiency of the engine and
(ii). The energy expelled to the cold reservoir in each cycle.