Answer:
W = - 523.425 W = -0.5234 kW
Negative sign show power input to the pump
Explanation:
By using energy balanced at state q and state 2
As it is given neglect kinetic energy and heat transfer therefore above equation rduece to
As temp remain cosntant , so enthalapy difference is givena s
from saturated water tables, for temperature 15 degree celcius specific volume of water is
putting zi =0, z2 = 15, m= 1.5 kg/s
W = - 523.425 W
Negative sign show power input to the pump
Answer:
Explanation:
Given
Initial Thickness=45 mm
Final thickness=20 mm
Roll diameter=600 mm
Radius(R)=300 mm
coefficient of friction between rolls and strip ()=0.15
maximum draft
Minimum no of passes
(b)draft per each pass
Answer:
0.2 kcal/mol is the value of for this reaction.
Explanation:
The formula used for is:
where,
= Gibbs free energy for the reaction
= standard Gibbs free energy
R =Universal gas constant
T = temperature
Q = reaction quotient
k = Equilibrium constant
We have :
Reaction quotient of the reaction = Q = 46
Equilibrium constant of reaction = K = 35
Temperature of reaction = T = 25°C = 25 + 273 K = 298 K
R = 1.987 cal/K mol
1 cal = 0.001 kcal
0.2 kcal/mol is the value of for this reaction.
Answer:
time = 224 days
Explanation:
given data
thick = 30 m
piezometers = 280 m
head between two = 1.4 m
aquifer hydraulic conductivity = 50 m
porosity = 20%
solution
we get here average pole velocity that is get by using Darcy law that is
Va = ................1
here Va is average pole velocity and k is hydraulic conductivity and is porosity
here v is = ...........2
v = 50 ×
v = 0.25 m/day
and here average linear velocity Va will be
Va =
Va =
Va = 1.25 m/day
travel time for water will be
time =
time = 224 days
Maybe but maybe not, today is not the answer but tomorrow may come but not as yet is perceived.