Answer:
[a]. 0.49.
[2]. 0.536
[c]. 4.15 kmol; 5.84 kmol.
Explanation:
Without mincing words let's dive straight into the solution to the question above.
[a].
The initial external reflux ratio, LD that must be used = [(0.85 - 0.57)/ 0.85 - 0]/ [ 1 - (0.85 - 0.57)/ 0.85 - 0].
The initial external reflux ratio, LD that must be used = 0.329/ 1- 0.329 = 0.49.
[b].
The final external reflux ratio that must be used = [ 0.85 - 0.13/ 0.85 - 0]/ [ 1 - 0.85 - 0.13/ 0.85 - 0].
Hence, the final external reflux ratio that must be used =0.847/ 1 - 0.847 = 5.536.
[c].
The amount of distillate product that is withdrawn:
4 = 0.85 H(t) + 0.8 - 0.08.
H(t) = 4.15 kmol, and the value of Wfinal = 5.84 kmol.
Answer:
Compute the first four central moments for the following data:
i xi
1 45
2 22
3 53
4 84Explanation:
Answer:
(b) Constant (minimum) volume
Explanation:
In the idealized Otto cycle there are 4 process that are
- Reversible adiabatic compression
- Addition of heat at constant volume
- Reversible adiabatic expansion
- Rejection of constant volume
So from above discussion we can see that heat is added when there is constant (minimum) volume which is given in option (b) so option (b) will be the correct answer
Answer:
Explanation:
Given that :
the diameter of the reservoir D = 18 mm
the diameter of the manometer d = 6 mm
For an equilibrium condition ; the pressure on both sides are said to be equal
∴


According to conservation of volume:



Replacing x into (1) ; we have;



Thus; the liquid deflection is : 
when the applied pressure is equivalent to 25 mm of water (gage); the liquid deflection is:




L = 27.21 mm
Answer:
R = 0.5825 k ohm
Explanation:
given data
vD = 0.75 V
iD = 1mA
resistor R = 15-V
solution
we get here first vD that is
vD =
vD = 0.825
so
iD = Ise ×
n = 1
so we can say
so it will
iD2 = iD1 × 
put here value and we get
iD2 = 1 ×
iD2 = 1 ×
iD2 = 20.086 mA
so
R will be
R =
R = 0.5825 k ohm