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GATE BT-2017 Answer Key | Solutions Discussion
This is post no. 361 under the main topic.
(03-01-2017, 08:49 PM)SunilNagpal Wrote:
(03-01-2017, 08:38 PM)Santhosh Ram Wrote: can it be challenged?
Yes it can be challenged
Sir the unit of k is correct....for zero order reaction.... k is Mole/sec...
[Image: 267f0f19f20849a688abe7f233e76d88.jpg]
 
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This is post no. 362 under the main topic.
[Image: c202bfae285c178b77d71122ac759c27.jpg]

Infact the formula used is....A0-A=kt
Where A0 has the unit moles....A is final conc which is zero.
 
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This is post no. 363 under the main topic.
(03-01-2017, 10:05 PM)sadaf188 Wrote:
(03-01-2017, 08:49 PM)SunilNagpal Wrote: Yes it can be challenged
Sir the unit of k is correct....for zero order reaction.... k is Mole/sec...
[Image: 267f0f19f20849a688abe7f233e76d88.jpg]
It's mole per litre per sec or M per sec ... not mole per sec.. unit of k in question was wrong..
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
 
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This is post no. 364 under the main topic.
(03-01-2017, 10:26 PM)SunilNagpal Wrote:
(03-01-2017, 10:05 PM)sadaf188 Wrote: Sir the unit of k is correct....for zero order reaction.... k is Mole/sec...
[Image: 267f0f19f20849a688abe7f233e76d88.jpg]
It's mole per litre per sec or M per sec ... not mole per sec
Yes sir

But d formula used should be ,....A0-A=kt
 
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This is post no. 365 under the main topic.
(03-01-2017, 10:24 PM)sadaf188 Wrote: [Image: c202bfae285c178b77d71122ac759c27.jpg]

Infact the formula used is....A0-A=kt
Where A0 has the unit moles....A is final conc which is zero.
sadaf, concentration is in Molar terms which is moles per litre...if one says conc. of A is 1M then it is moles per litre.

Similarly, k is expected to have units in M per sec or min (or moles per litre per min)
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
 
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This is post no. 366 under the main topic.
(03-01-2017, 10:32 PM)SunilNagpal Wrote:
(03-01-2017, 10:24 PM)sadaf188 Wrote: [Image: c202bfae285c178b77d71122ac759c27.jpg]

Infact the formula used is....A0-A=kt
Where A0 has the unit moles....A is final conc which is zero.
sadaf, concentration is in Molar terms which is moles per litre...if one says conc. of A is 1M then it is moles per litre.

Similarly, k is expected to have units in M per sec or min (or moles per litre per min)
Yes sir I know that M means moles/liter
But d formula that can fit is A0-A=kt
Where A is in moles nd k in moles/min?
If so....the answer will be 10000
So this can be challenged...right?
 
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This is post no. 367 under the main topic.
Sunil sir plz help me wid question no. 16 also.
 
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This is post no. 368 under the main topic.
(03-01-2017, 08:49 PM)SunilNagpal Wrote:
(03-01-2017, 08:38 PM)Santhosh Ram Wrote: can it be challenged?
Yes it can be challenged

Right Bro. It should have been either in grams/milligrams(i.e - mg/min) or  M(molarity). Fell for the same trap. I thought, I was the only one. 


If someone challenges it, gets it right will everyone with that answer be awarded.

What about that plasmid question. There is no xho1 site in MCS or any part of plasmid?
 
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This is post no. 369 under the main topic.
(03-01-2017, 10:35 PM)sadaf188 Wrote:
(03-01-2017, 10:32 PM)SunilNagpal Wrote: sadaf, concentration is in Molar terms which is moles per litre...if one says conc. of A is 1M then it is moles per litre.

Similarly, k is expected to have units in M per sec or min (or moles per litre per min)
Yes sir I know that M means moles/liter
But d formula that can fit is A0-A=kt
Where A is in moles nd k in moles/min?
If so....the answer will be 10000
So this can be challenged...right?
One need not challenge on the basis of fitting values of A and Ao in terms of moles (as it is the norm to use concentration of reactants in the classical equation).

This question can simply be challenged on the basis of unitary approach, supported by the fact that unit of k leads to imbalance of units on reactant n product sides (if one tries to follow the approach used for obtaining 100 mins as solution).
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
 
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This is post no. 370 under the main topic.
(03-01-2017, 10:47 PM)SunilNagpal Wrote:
(03-01-2017, 10:35 PM)sadaf188 Wrote: Yes sir I know that M means moles/liter
But d formula that can fit is A0-A=kt
Where A is in moles nd k in moles/min?
If so....the answer will be 10000
So this can be challenged...right?
One need not challenge on the basis of fitting values of A and Ao in terms of moles (as it is the norm to use concentration of reactants in the classical equation).

This question can simply be challenged on the basis of unitary approach, supported by the fact that unit of k leads to imbalance of units on reactant n product sides (if one tries to follow the approach used for obtaining 100 mins as solution).
OK thank u so much sir.....

Sir plz ques no. 16
 
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