In testing of Cement the formula for water requirement for setting time is as below- Water required for setting time = NC x 0.85 The question is that what is the logic of 0.85 in this formula??

2030

what is induction on electrical insulators

1852

what kind of question can be asked in interview for polarimeter related ?

4728

. Given that 2Hg2+ (aq) + 2 e- Hg22+(aq) E0 =0.92V Hg22+ (aq) + 2 e- 2Hg(l) E0 =0.85V Calculate standard free energy change and K for the following process at 25oC Hg22+(aq) Hg2+ (aq) + Hg(l)

6010

How to accelerate electron capture decay?

1853

what does 50 denote in dowex 50 ????

2100

During Soundness testing of Cement by Lechatelier method the Cement mould expands about 20 mm when merged in curing water for 24 hours after mould preparation.In that Cement MgO content is about 3.0%,SO3 is about 2.6% & Blaine is about 360 M2/Kg.Guess the reason & suggest solution.

2549

what is the difference between elctrefining and electrolysis?

1749

Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well

999

what are UV rays absorbs slightly?

1639

The use of vermilion on rubric of the Tartar Relation is confirmed by the presence of three lines attributed to HgS. Why should this diatomic have more than one vibrational line?

2181

what kind of question can be asked in interview for UV- VISIBLE & give me answer ?

3383

Sr-90, a radioactive isotope, is a major product of an atomic bomb explosion. It has a half life of 28.1 year. Calculate the first order rate constant for this nuclear decay and the fraction of 90Sr that remains after 10 half lives?

5719

What is the brigg's raucher reaction?

1846

Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?

1778