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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.
list down example of spectroscopic methods based on interaction of matter electromagnetic radiation?
why wood doesnot sublimine ?
Impurities of solids Impurities are frequently added to materials to improve the properties. For example, carbon added in small amounts to iron makes steel, which is stronger t
The present atomic weight scale is based on: (1) C 12 (2) O 16 (3) H 1 (4)C 13 Ans: C 12
Which of the following are isoelectronic and isostructural NO - 3 , CO 2- 3 ,ClO - 3 , S O 3 (1) NO - 3 , CO 2 - 3 (2) SO 3 , NO- 3
why lanthanides and actinides are known as inner transition elements
Q. What is Diborane? The chemistry of diborane has aroused considerable interest because of its usefulness in many synthetic reactions and also because the elucidation of its s
Preparation of saturated calomel electrode and determination of standard potentials of electrodes such as Cu 1 Cu, Zn 1 Zn, etc. Comparison of the potential values with values from
The co-ordination compounds are of great importance. These compounds constitute the minerals, plants and are also present in animals. These play important functions. For example, c
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