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प्रश्न
Define entropy.
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उत्तर
Entropy (S) is defined more precisely as a thermodynamic state function that measures the degree of randomness or disorder of the particles in a system.
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संबंधित प्रश्न
In which of the following, entropy of the system decreases?
Answer the following in one or two sentences.
State second law of thermodynamics in terms of entropy.
Answer the following in one or two sentences.
If the enthalpy change of a reaction is ∆H how will you calculate the entropy of surroundings?
Answer the following in one or two sentences.
Comment on the spontaneity of reactions for which ∆H is positive and ∆S is negative.
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Identify the INCORRECT statement.
For a process, entropy change of a system is expressed as ________.
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In which of the following, ∆S is positive?
Which one of the following has ΔS0 greater than zero?
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At what temperature, a chemical reaction will have the following values of ∆G, ∆S and ∆H?
∆G = −5.2 KJ mol−1, ∆H = 145.6 kJ mol−1, ∆S = −216 kJ mol−1
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For which of the following reaction, ΔH = ΔU?
When will be change in Gibb's free energy always negative?
Identify the unit used for measurement of energy according to international system of units?
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What is a spontaneous process? What are its characteristics?
Calculate ΔG for ΔH = − 110 kJ, ΔS = + 40 J K−1 at 400 K.
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