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Entropy (S) is a molecular 'disorder', or more precisely 'the number of microscopic arrangements of energy possible in a macroscopic sample'. Entropy depends strongly on the state and increases with rise in temperature.
Entropy changes (ΔS) are positive for reactions that generate gas molecules. The Second Law of Thermodynamics defines that the total entropy always increases in a spontaneous process, and reaches a maximum value at equilibrium. To apply this to chemical reactions it is necessary to include entropy changes in the surroundings caused by heat output or input. Both external and internal changes are taken account of by defining the Gibbs free energy change (ΔG): for a reaction performing at constant temperature.
why is soda lime used instead of plain NaOH in preparation of methane?( for class 10)
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what is the m.p naphthalene,ammonia oxalate,citric acid ,naphthyl acetic acid
properties of atom
Q. Describe Electrochemistry Electricity (i.e., electric current) is a flow of electric charges. In metals, it is the flow of electrons. In electrolytes, it is the mov
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CAN BOHR MODEL EXPLAIN THE SPECTRUM LINE OH HYDROGEN ATOM?
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