Physical Chemistry Interview Questions
Questions Answers Views Company eMail

is the temparature effects the solubility of the compound?

2 4439

is the pH effects the solubility/micibility of the compound?

4 7782

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 4134

What is the difference between EMF and Voltage?

IGCAR,

8 17132

2day 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 3786

WHAT IS THE SYLLABUS OO GROUP -I?

1898

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

1928

what are UV rays absorbs slightly?

1821

why we are carrying standardization of karl fisher auto titrator with water and disodium tartarate.

1 5078

What is the brigg's raucher reaction?

2005

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.

2729

As 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?

Grasim,

1 3686

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??

Grasim,

2177

what is the difference between elctrefining and electrolysis?

1917

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?

Wipro,

5878


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Un-Answered Questions { Physical Chemistry }

what are UV rays absorbs slightly?

1821


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??

2177


How to accelerate electron capture decay?

2021


what does 50 denote in dowex 50 ????

2253


. 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)

6276






How can be set a responds factor for evaluating a unknown impurity by HPLC

2081


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?

5878


Why does the experimental lattice enthalpy of NaI differ greatly from the theoretical lattice enthalpy?

3088


what is induction on electrical insulators

2008


4 Identify the substance oxidized, reduced, oxidizing agent and reducing agent for the following reactions

2177


what is the difference between elctrefining and electrolysis?

1917


Write the each half cell reaction and also net cell reaction for a cell

2608


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)

2332


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.

2729


What is the requirement to give RFlow when using RID detector?

2722