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The standard free energy change for a reaction is -212.3 kJ mol -1.
If the enthalpy of the reaction is - 216.7 kJ mol-1, calculate the entropy change for the reaction.
A solid substance with a mass of 200g is at its melting temperature in a calorimeter. While the substance changes from a solid to a liquid at the same temperature, the 400-gram mas
The positive charge of an atom is: (1) Spread all over the atom (2) Distributed around the nucleus (3)Concentrated at the nucleus (4) All of these Ans: Concentr
Q. Explain about Structural Isomerism? When two molecules have the same atoms but different bonds, they are called structural isomers. Thus, the variation of bond type or multi
The ionisation potential of a hydrogen atom is -13.6 eV. What will be the energy of the atom corresponding to n= 2 . (1) -3.4 eV (2)-6.8 eV (3) -1.7 eV
Explain the Sensory Evaluation We begin our discussion on sensory evaluation by first understanding what we mean by sensory evaluation. Sensory evaluation is a scientific disc
There are 13 electrons in an element whose nucleus comprise 14 neutrons. Obtain atomic number and atomic weight of this element. If atomic weight of the isotope of above element is
Explain experimental evidence to demonstrate the existence of ferromagnetic domains. Temperature increases, thermal motion, or entropy, competes with ferromagnetic tendency for
List the practical or commercial application of conductometric titration
Q. Calculate Enthalpy Changes in system? Ans. It turns out that you can add reactions the same way you add algebraic equations. The enthalpy of the resulting reaction is the su
Which type of bonding exists in Li 2 o and CaF 2 respectively : (1) Ionic, ionic (2) Ionic, covalent (3) Covalent, ionic
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