Answer / kangchuentat

ENGINEERING MECHANIC - ANSWER 15.2 : BM near the fixed end = -LWL/2 = -3 x 20 x 3 / 2 = -90 Nm. SF near the fixed end = -WL = -20 x 3 = -60 N. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Why catalyst is charging in chemical reaction as high pressurized pellet of tablet?

2 Answers  

---

POLYMER ENGINEERING - QUESTION 24.3 : The molecular weights M in kg / mol of 3 different monomers a, b and c in a polymer are Ma = 14, Mb = 16 and Mc = 18, with their respective quantities in N units having the ratio of Na : Nb : Nc = 2 : 3 : 5. (a) Find the numerical average molecular weight of the polymer by using the formula (Ma Na + Mb Nb + Mc Nc) / (Na + Nb + Nc). (b) Find the weighted average molecular weight of the polymer by using the formula (Ma Na Ma + Mb Nb Mb + Mc Nc Mc) / (Ma Na + Mb Nb + Mc Nc). (c) Calculate the polydispersity Q by using the answer in (b) divided by answer in (a). (d) Find the volumetric average molecular weight of the polymer by using the formula (Ma Na Ma Ma + Mb Nb Mb Mb + Mc Nc Mc Mc) / (Ma Na Ma + Mb Nb Mb + Mc Nc Mc). (e) Estimate the polydispersity Q by using the answer in (d) divided by answer in (b).

1 Answers  

---

Question 76 - Let C% be the fractional crystallinity, Rs = density of sample, Ra = density of amorphous form and Rc = density of crystalline form. In a polymer, these unknowns could be related by the equation C% = (Rc / Rs) (Rs - Ra) / (Rc - Ra). (a) Find the equation of Rc as a function of C%, Rs and Ra. (b) Two samples of a polymer, C and D exist. For sample C, C% = 0.513 when Rs = 2.215 unit. For sample D, C% = 0.742 when Rs = 2.144 unit. Both samples C and D have the same values of Ra and Rc. Find the values of Ra and Rc in 6 decimal places.

1 Answers  

---

what is unit operation?

8 Answers   Sun Pharma, Zydus Cadila,

---

Experiment constitutes 1000 ml of 10 ppm dye solution and 0.2 g catalyst mixed in beaker. How to calculate the initial of concentration?

1 Answers  

---

why is cross over inlet provided in a furnace?

3 Answers   Essar,

---

hi.i m student of chemical engg. and studying in 5 th sem.how can i improve my technical knowledge..can u sugest me a link like book or any website..?

3 Answers  

---

What is an additive?

0 Answers  

---

For a given bulk solid how can the particle size distribution be determined?

0 Answers  

---

what is cv value in valves

3 Answers   IFFCO,

---

ENGINEERING DRAWING - EXAMPLE 18.1 : For a Vernier scale of representative fraction (RF) = 1 / 25, calculate the length of the scale for the reading up to 4 metres.

1 Answers  

---

What are the factors involved in considering the choice of dry screw compressor?

0 Answers  

---