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Grade: 12th pass
        
see for solving the question...
5 years ago

Answers : (13)

grenade
2061 Points
							
mansi the question is very simple u have to use the formula H=E+ngRT  ng represents the change in number of moles of the gaseous species
thus substitute the values and you will get the answer here ng =1
approve if useful
5 years ago
ng29
1698 Points
							
hey mansi   have u solved this question and calculated the final answer 
bcoz according to me none of the options are matching 
using formula that is above mentioned 
 check it out
 
approve if useful
5 years ago
grenade
2061 Points
							
mr.
ng29 answer is the B option please checkout the calculation
mansi ain’t be confused
approve if useful
5 years ago
ng29
1698 Points
							
oh !!!!  really can u plz explain me ur calculation
H=E + RT   ng=1 
176 – RT = E               R=0.0821  AND T=1240 
is it right than how answer can b) possible  
 
5 years ago
grenade
2061 Points
							
Again you committed the same mistake
The value of R is 8.313 inspite .0821
U can check Google too
For the value of R
5 years ago
grenade
2061 Points
							
Search for the value of R on Google
too remark your units ng29
 
5 years ago
mansi dabriwal
29 Points
							
see akshat and ng29 if i take value of R as 8.313 than
H=E+ngRT
176=E+1x8.313x1240
176-10308.12=E
E=-10132.12 which can’t be possible so what’s the correct method and answer....
5 years ago
ng29
1698 Points
							
thats what i am saying mansi to akshat that whats the value of R 
the answer does not comes out correctly
and i am also little bit confused about the anser and method
in my opinion there is some printing mistake 
 
approve if useful
 
5 years ago
mansi dabriwal
29 Points
							
yah it could be...
5 years ago
Gman Namg
420 Points
							
Mansu and ng29
Conver the values un kilojule
And then contradict my voce
It would be
176000-10308=166.something
Pl mansi ain`t commit this mistake in bitsad
Finally with the end of decision
Best of luck for your bitsat 19, may 2015
 
5 years ago
Shubham Singh
199 Points
							
the answer is b. value of R will be 8.314 x 10-3
 
5 years ago
grenade
2061 Points
							
 Gman you got the answer correctly
5 years ago
mansi dabriwal
29 Points
							
Thanx for the good luck wishes Gman but i have my bitsat on 20th may....not on 19th 
5 years ago
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