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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 *)
Characteristics of homologous series (i) All the members of a series can be presented by the general formula. For instance, the members of the alcohol family are illustrated b
Alkane is a organic compound which having single bond between c-c i.e alkane is a saturated compound.
Physical properties of Nitro alkanes or Nitroparaffins (1) Nitro alkanes are colourless, pleasant smelling liquids. (2) These are sparingly soluble in water but enthusiastic
The wavelength of the radiation emitted, when in a hydrogen atom electron falls from infinity to stationary state 1, would be (Rydberg constant 1.097 x 10 7 m -1 ) (1) 406 nm
determination of proteins in flour sample
Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
Which of the following reduces the activation energy of a chemical reaction?
NUMERICAL OF KOHLRAUSCH LAW ON CONDUCTIVITY
The ratio between kinetic energy and the total energy of the electrons of hydrogen atom according to Bohr's model is: (1) 2 : 1 (2)1 : 1 (3)1 : - 1 (4)
When atoms are bombarded with alpha particles, only a few in n, others pass out undeflected. This is because : (1) The nucleus occupies much smaller volume compared to the volu
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