At 150 degree Celsius, a mixture of 40 wt % Sn and 60 wt % Pb present, forming p

At 150 degree Celsius, a mixture of 40 wt % Sn and 60 wt % Pb present, forming phases of alpha and beta. Chemical composition of Sn at each phase : CO (overall) : 40 %, CA (alpha) : 11 %, CB (beta) : 99 %. (a) State 2 reasons for the existences of alpha and beta phases for the mixture of Sn – Pb at 150 degree Celsius. (b) By using Lever Rule, calculate the weight fraction of each phase for alpha, WA = Q / (P Q) and beta, WB = P / (P Q) where Q = CB – CO and P = CO – CA.

Question Posted / kang chuen tat (malaysia - pen

1 Answers
2578 Views
I also Faced
E-Mail Answers

At 150 degree Celsius, a mixture of 40 wt % Sn and 60 wt % Pb present, forming phases of alpha and b..

Answer / kang chuen tat (malaysia - pen

(a) Reasons : (1) atomic radii difference; (2) different crystal structure. (b) P Q = CO – CA CB – CO = CB – CA, then WA = Q / (P Q) = (CB – CO) / (CB – CA) = (99 – 40) / (99 – 11) = 0.6705. WB = P / (P Q) = (CO – CA) / (CB – CA) = (40 – 11) / (99 – 11) = 0.3295. 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.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Chemical Engineering Interview Questions

What is a good source of equations for calculating discharge flowrates from accidental releases?

0 Answers

We are having proplem with the persperation smell in ETT/ECHO room in our cardiac hospital.The 2 Ton of AC is not conditioning the environment. We have to use exhaust fan to through out of the room bad air. Could anyone suggest how to coup with this effectively using chemical engineering. Any permanent solution to neutralise the bad smell.The Air freshners are not doing enough instead making a bad odour.

0 Answers

what is isochronus and droop speed?

0 Answers

Explain how can you determine the largest impeller that a pump can handle?

0 Answers

Explain what are some good uses of low-grade steam at 12 atm and 1920c?

0 Answers

Are there any methods of preventing cracking of carbon steel welds in refining environments?

0 Answers

what is R1,R2,R3, R4........?

0 Answers Okaya,

What is the difference between multi grade filter and dual media filter?