Thursday, November 12, 2009

Universal gas constant

Many times I have asked myself what is universal gas constant which I have been studying for so many years.

During my school days,I used to mug up the value of the value of Universal gas constant because the units are sure to be as one question in objective type.So...

During my school days it was like:

R=8.314 J/mol/K

R=1.987 cal/mol/K.

Oh! I need to mug up the unit...OK...J/mol/K...Cal/mol/K...In my exams,atlast I used to get confused and mark wrong answer!!!

I used to think in my mind why people have discovered so many units(SI,CGS etc.) just to confuse everyone....especially students....

Universal gas constant doesn't end with school.Infact it is the beginning...

In college as I had taken Chemical Engg(Without even being now aware of what the subjects are!),So universal gas constant was bound to continue...

Aarthi,my teacher during my B.Tech days with whose help I have just passed...just passed many exams... used to teach so many chemical Engg. subjects especially problems.So she used to say Ok,then...

"In this problem you have to put the value of R and 2-3 Eqns.S the problem is solved...."

After a gap of so many years...R is still not leaving me...

Now as a Scientific Officer,my HOD asks me, " why don't you calculate the enthalpy of Pyrite oxidation and Free energy of Uranium oxidation".

Myself:Ok,Sure sir!

Next...Going to the library to search Enthalpy,entropy and gibb's free energy.

Accidently I come across R once again.As the book(Moore's Chemical Metallurgy) was interesting and teaching me all the basics,I got to know what finally R is :


For gases,molar heat capacity is found to vary i.e.value of Molar Heat capacity of gases at Consant Pressure vary from Molar Heat capacity of gases at Consant Volume and this variation is found to be almost constant for all gases and that is why it is called as Universal Gas constant and is also equal to Cp-Cv.
That is the reason why it is called
Universal as it is applicable to most of the gases
Gas as it is applicabe to gases
Constant as the value is almost found to be constant.
Eureka!Atlast I found it.Like this, there are so many questions in my mind.If I find answers,I definitely will write them.

Monday, October 19, 2009

After a long gap...

Yesterday after a long gap my friend gave me Kumudam from one of the fellow passengers in the Charminar train.After my post B.Tech days,my brother practised me the habit of reading Ananda Vikatan and I started enjoying it.But when in 2007 I had to go to Malanjkhand,I was totally cut of from reading this weekly magazine-A magazine which had taught me so many things in my life.

Now having read a similar magazine(Kumudam) yesterday had brought me back the memories of my yesteryears and gave me great satisfaction.

Friday, July 17, 2009

IRONY OF LIFE

I had spent one year and nine months in Malanjkhand which is supposed to be a jungle compared to a city like Hyderabad where I presently work.I also frequently visit Jharkhand for my official purpose.
Somethings are really ironic in life.One such thing happened yesterday in my office at Hyderabad.

In both these places(Malanjkhand and Jharkhand) I've not seen two big snakes fighting with each other.Such a seen I was able to see at Hyderabad only.Probably snakes also prefer cities!!!

Sunday, July 5, 2009

Hyderabad-City of Colourful Gulmohar flowers.

Hyderabad-My job's new found location.Because of my education I had been visiting so many places in India-Delhi,Mumbai,Kolkata,Assam,Jharkhand,Madhya Pradesh,Bhopal,Nagpur to name a few and at present I'm housed at Begumpet,Andhra Pradesh.Though initially I didnot like the place,as days passed,almost five months,I have slowly tried to accomodate myself in the new place(Minimum time duration for me to accomodate to a new place is one year).Hyderabad to me is a city of gulmohars-As gulmohars of different colours are there wherever I go whether it's my PG,office or in the Dwaraka's colony park where I go for walking occassionally.So my new found friend to share, is the Gulmohar tree which its huge branches and colourful flowers.Its been very pleasant to gaze at the beautiful and aesthetic gulmohar flowers as they give peace to the wandering heart.

Thursday, July 2, 2009

Thanglish

ஹவ் நைஸ் டெக்னாலஜி.டைப் இன் இங்கிலீஷ்
இட் கேட்ஸ் காங்வேர்டேது டு தமிழ்! ரேஅல்லி வொந்டெர்புல்

Friday, June 26, 2009

SCRAPING X CLASS EXAMS

The proposal to scrap the X class boardexams as far as I'm concerned is one of the most important moves.It will give a big blow to the tuition centres which are minting money in the name of coaching and a big relief from children who will be pressurised to excel in the exams both from their parents and teachers.Mr.Kapil Sibal must also ensure that a lot of vocational subjects are included in the curriculum so that students can have an idea of an industry or a research life.
There must be as many practical classes as possible so that Indian children will be enriched in knowledge.
Education should give more importance to values,the Indian culture and at the same time be world class.Children must also be taught in such a way that they can enjoy their childhood to the fullest extent possible.
Above all quality education must no longer remain a distant dream for the underprivileged children.
Will the present government look into all these features?

Tuesday, April 28, 2009

Shameful Act

In our country ,throwing shoes at politicians these days have become a casual occurence in public meetings or press conferences.
The first one was aimed at Mr.P.Chidambaram.Though I was indifferent in the beginning,my mother told me that in the US,shoes were thrown at Bush,not by a non-American."But look at the condition of India wherein one amongst us had did this shameful act."
Only then I realised what a shameful act has happened in our country.
But did it stop there?Two more such incidents followed this: One at Mr.Advani and the other was attempted by not so good college student for the sake of mere publicity at the PM himself?
Where are heading as a nation is a real big ?