@nishantthakre
I want to make you clear that when the question involving log and antilog are asked in Chemistry ,they provide those values .They will give the values after the question in brackets. So you don't need to read the tables.
Aman Prakash
@Aman Prakash
Best posts made by Aman Prakash

RE: Cbse board chemistry

RE: PNC
@harshalgajendra
Case 1:
4 distinct letters Permutation = 8C4 × 4!
Case 2:
2 same 2 distinct letters Permutation = 2C1 × 7C2 × 4!
Case 3:
2 same & 2 same letters Permutation = 4! / 2!×2!
Total no of ways = case 1+ case 2+ case 3
Answer = 1680 + 510 + 6 = 2190 
RE: Rounding off
7.4852007:
STEP1 For rounding off to two decimal places go to the third place after decimal and see if that number is greater than or equal to 5 then the number at second place after decimal is increased by 1.
STEP2 And if the number at the third place after decimal is less 5 then the number at the second place after decimal is the same number without any change .
Here the answer would be 7.49 because the number at the third place after decimal is 5 so the number at the second place after decimal will be increased by 1.

RE: WPE
@siddharthaghosh
At maximum extension 1/2kx^2 = 1/2mv0^2 + 1/2mv0^2
kx^2 = 2mv0^2
x = sqrt(2m/k)V0. 
RE: Kinetics
@nishantthakre
Molecularity is defined only for elementary reactions. A complex reactions cannot have a molecularity as a whole. There are several elementary reactions which makes up a complex reaction . And molecularity is only defined for the rate determining step of the complex reaction. Since the rate determining step is not given for the given complex reaction , there is no meaning of talking about the molecularity of this reaction. 
RE: Electrochemistry
@siddharthaghosh
For this E0 cell be 0.059 /3 log /[Al3+]
On increasing [Al3+] ,1/[Al3+] decreases log (1/[Al3+]) decreases and since the whole term is negative , less negative term means E0 cell increases.
Latest posts made by Aman Prakash

RE: Chemical kinetics
@siddharthaghosh
If the option is clearly not given pseudo first order we chose the option as second order. 
RE: Chemical kinetics
@siddharthaghosh
Yes it's pseudo first order . But we can take second order .It is equivalent to pseudo first order. If the order is asked we take 2 unless option is given pseudo first order. 
RE: Electrochemistry
@siddharthaghosh
E0 cell is not an extensive property . Its an intensive property and hence not additive in nature . For each reaction write Delta Gf= nfE0cell and then you can use the addition thing as Delta G is an extensive property. 
RE: Electrochemistry
@siddharthaghosh
For this E0 cell be 0.059 /3 log /[Al3+]
On increasing [Al3+] ,1/[Al3+] decreases log (1/[Al3+]) decreases and since the whole term is negative , less negative term means E0 cell increases. 
RE: Thermodynimcs q72
@siddharthaghosh
delta S = delta H /delta T for surrounding.
delta S = 10000/400
= 25 J/K
Since the entropy of surrounsings we have to calculate and energy is transfereed from surroundings so Delta H for surroundings will be negative and the temperature for surroundings is 400 K