At a constant temp. volume is inversly proportional to pressure. This is Boyle's law. But, when u give pressure to a football, how the volume also increases?
1 38682day science says that clouds r formed due to sea(more than 90% sea water in cloud). but when rain starts,,,,the rainy water is sweet while sea (salty)water is salty.....how sea water is converted into sweet water?
1 3502Normally entropy is expressed as q/T. But, work and heat have same unit. Why can't it be replaced by work?
1755why we are carrying standardization of karl fisher auto titrator with water and disodium tartarate.
1 4797During 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.
2524As per X-ray Fluorescence theory, when material particle is irradiated with X-ray the electron of innermost orbital of that element atom is exited and emits outside of the atom as photoelecrons, living behind a hole in innermost orbital . This hole is filled by outer orbital electrons. The question is that finely what happens to that photo electon which is emitted outside of the atom?
1 3382In 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??
2009Sr-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?
5689Post New Physical Chemistry Questions
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?
what is induction on electrical insulators
why athanol-water mixtuere have maximum viscocity in wt% 40?
The rate constant for the second order reaction is 0.54/M.s at 300oC. How long (in sec) would it take for the concentration of NO2 to decrease from 0.62M to 0.28 M? 2NO2(g) 2 NO(g) + O2(g)
what does 50 denote in dowex 50 ????
Find out how to make artifacts the maxwell boltzmann theory of gases . ps. I don't speak English that well
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??
what kind of question can be asked in interview for polarimeter related ?
How can be set a responds factor for evaluating a unknown impurity by HPLC
what is the difference between elctrefining and electrolysis?
what kind of question can be asked in interview for UV- VISIBLE & give me answer ?
What can be the supporter of combustion except oxygen.
what are UV rays absorbs slightly?
what is allowable limit Of stray light for a spectrophotometer laboratory instruments ?
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?