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Free energy, , is a state function that indicates whether a reaction is spontaneous or non-spontaneous. If you think of  as the part of the system’s energy that is disordered already, then  is the part of the system’s energy that is still ordered and therefore free to cause spontaneous change by becoming disordered

Also,

From the second law of thermodynamics, a reaction is spontaneous if  is positive, non-spontaneous if  is negative, and at equilibrium if  is zero.

Since,  and since  and  have opposite signs, we can restate the thermodynamic criterion for the spontaneity of a reaction carried out a constant temperature and pressure

If , the reaction is spontaneous

If , the reaction is non-spontaneous

If , the reaction is at equilibrium

Read the above paragraph carefully and answer the following questions based on the above comprehension

For the spontaneity of a reaction, which statement is true?

a)

b)

c)

d)


Question ID - 103881 | Toppr Answer

Free energy, , is a state function that indicates whether a reaction is spontaneous or non-spontaneous. If you think of  as the part of the system’s energy that is disordered already, then  is the part of the system’s energy that is still ordered and therefore free to cause spontaneous change by becoming disordered

Also,

From the second law of thermodynamics, a reaction is spontaneous if  is positive, non-spontaneous if  is negative, and at equilibrium if  is zero.

Since,  and since  and  have opposite signs, we can restate the thermodynamic criterion for the spontaneity of a reaction carried out a constant temperature and pressure

If , the reaction is spontaneous

If , the reaction is non-spontaneous

If , the reaction is at equilibrium

Read the above paragraph carefully and answer the following questions based on the above comprehension

For the spontaneity of a reaction, which statement is true?

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (d) -

(d)

 and both favour the process



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