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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Answer the following in one or two sentences. State second law of thermodynamics in terms of entropy. - Chemistry

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प्रश्न

Answer the following in one or two sentences.

State second law of thermodynamics in terms of entropy.

टीपा लिहा

उत्तर १

Statement: “The second law of thermodynamics states that total entropy of a system and its surroundings increases in a spontaneous process.”

For the process to be spontaneous,

`triangle "S"_"total" = triangle "S"_"sys" + triangle "S"_"surr"` > 0.

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उत्तर २

Second law of thermodynamics in terms of entropy:
The second law of thermodynamics states that, “The total entropy of the system and its surroundings (universe) increases in a spontaneous process”.

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Spontaneous (Irreversible) Process
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Chemical Thermodynamics - Exercises [पृष्ठ ८७]

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बालभारती Chemistry [English] 12 Standard HSC
पाठ 4 Chemical Thermodynamics
Exercises | Q 2.6 | पृष्ठ ८७

संबंधित प्रश्‍न

Define 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 question.

Although ΔS for the formation of two moles of water from H2 and O2 is –327J K–1, it is spontaneous. Explain.
(Given ΔH for the reaction is –572 kJ).


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Identify the INCORRECT statement.


For a process, entropy change of a system is expressed as ________.


For a reversible spontaneous change, ∆S is ____________.


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In which of the following, ∆S is positive?


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