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Initially 5 mol of an ideal gas with Cv,m=12.5 J K^-1 mol^-1 are at a volume of 5 dm^3 and a temperature of 300K. If the gas is heated to 373 K and the volume changed to 10 dm^3, w
How urea is considered as organic molecule. Becuase it does not contain C-H or C-C bonds
Purification of organic compounds Several methods are available for the purification of substances. Though, the selection of method, depends upon the nature of substance (if s
?H value obtained for the reaction NH3 + HCl –› NH4Cl using the thermodynamic data in your lab procedure?
Q. Use of Reactants in Excess? Ans. Consider a recipe for pancakes that calls for 2 cups of pancake batter mix and 1 cup of water. The result of this recipe is 14 pancakes
Q. Explain Le Chtelier's Principle Ans. Consider the equilibrium reaction of: A + B -> C + D The forward reaction occurs when A and B combine to form C and D: A +
The magnetic quantum number of valence electron of sodium (Na) is: (1) 3 (2) 2 (3) 1 (4) 0 Ans: 0
Drugs - Chemistry in Action Drugs may be a single chemical atom or a combination of two or more dissimilar substances. An perfect drug should assure the following needs, Whi
Cracking - Artificial process for manufacture of Petrol It is a method in which high boiling fractions containing higher hydrocarbons are heated strongly to decompose them into
The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3 (2) 5 → 2 (3) 4→ 3
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