Using the Peng-Robinson equation of state, calculate the work needed in (kJ/mol) for a steady-state flow reversible adiabatic compression of gaseous FREON-12, a refrigerant, from a pressure of 0.75 MPa and temperature of 325 K to a pressure of 2 MPa.

3.059 KJ/mole

Explanation:

check the picture attached for explanation

it breaks and dirupture other materials and other sencews from the bottom

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s