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Question 52 - The half-life for first order reaction could be described in the differential equation dC / dt = -kC where k is a constant, C is concentration and t is time. (a) Find the equation of C as a function of t. (b) Find the half life for such reaction or the time required to reduce 50 % of the initial concentration, where k = 0.139 per minute. (c) When the initial concentration Co is 16 mol / cubic metre, how long does the reaction required to achieve the final concentration of 1 mol / cubic metre?
1 2442In case of HV test on medium voltage cables, BS is asking for 4 U0 where as IEC is asking for 3.5 U0. Can any one advise me how this 3.5 times or 4 times U0 is derived?
1700In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?
1972
what is ground fault in ACB?
all the technical question with answers pleas send your email id ramar_eee@yahoo.com
Dear Sir/Madam,im going to attend Hpcl written exams on feb 17th in instrumentation stream..can anyone send me the HPCL model papers and pattern of HPCL ....i ve not yet attended anything in HPCL...so i dont know how it comes...so just i need some model test papers and pattern ..pls help me friends...
Machine tool guideways are usually hardening by ?
What will you do if a portion of load bearing wall collapses under your supervision?
What is the effect of inter cooling in gas turbines ?
What does f.o.f. Stand for in piping design?
hello friends, can you please send me the model paper or question paper to be prepared for hpcl examinations????????? You can mail me at rahim_here@yahoo.com waiting for your reply........... help me .. plz.....
What is the importance of counter based plan & how is it scheduled?
What is meant by soa?
What are the design stages in mechatronics?
i applied for the ap transco please forward the freqventley asked QA
Name of the relay of low lub oil presuure in DG sets
What is the use of lag compensator?
how we can do the insulation on secondary of ct explain and so that tan delta will within limit
