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Explain and Define standard feat of formation
Ans) The amount of heat liberated of absorbed when single mole of compound is formed in its standard state from its elements in their standard state is known as standard heat of formation ( Hf *)
Comment on the validity of the following statements, giving reasons: (a) Thermodynamically an exothermic reaction is sometimes not spontaneous. (b) The entropy of steam is mo
what is resonance effect? describe its application and its types?
Correct configuration of Fe +3 [26] is: (1) 1s 2 , 2s 2 , 2p 6, 3s 2, 3p 6 , 3d5 (2) 1s 2 , 2s 2, sp 6 , 3s 2 , 3p 6 , 3d 3 , 4s 2 (3) 1s 2 , 2s 2 , 2p
A monosaccharide A has a molecular weight of 150 Da. The two stereoisomers B and C that are both optically inactive form when A reacts with NaBH 4 . Illustrate the structures o
Q. How to balance a redox equation? Ans. Redox equations may be written and balanced by the ionic half-reaction method. Let's use the half-reaction method to balance the f
Q. Normal functioning of blood? The sixth position marked by X is either occupied by H 2 0 or 0 2 molecules. Impotant thing to note is that Fe 2+ in hemoglobin does not get o
Explain tie-line rule Tie-line rule is applied to determine the compositions of two co-existing phases in a binary phase diagram. Tie line is a horizontal line drawn at the tem
P= 10.5atm v= 2.06L T= 298K p= 5.21atm v= 6.15 t= ? what is t?
applications of photochemistry
Environmental pollution caused by oxides and oxyacids f nitrogen and sulphur
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