In any spontaneous process, the __________ free energy decreases.

A Helmholtz
B Gibbs
C Both A & B
D Neither A nor B

Correct Answer: Both A & B

For any spontaneous process $$dG \leqslant 0,\,\,dA \leqslant 0$$
And usually spontaneous process takes place when there are finite differences so, the process will be usually irreversible.
Hence $$dG So, free energy goes on decreasing and when the finite difference becomes infinitesimal difference it becomes constant.
Bissoy MCQ
#Chemical Engineering #Chemical Engineering Thermodynamics

Related Questions

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always
A increases
B decreases
C remains constant
D increases to a maximum before decreasing
For a spontaneous chemical process, the free energy change is
A Positive
B Negative
C Zero
D Depends on whether the reaction is exothermic or endothermic
In any spontaneous process,
A Only F decreases
B Only A decreases
C Both F and A decreases
D Both F and A increase
__________ law of thermodynamics ascertains the direction of a particular spontaneous process.
A Zeroth
B First
C Second
D Third
The entropy change for a spontaneous process is
A > 0 for the system
B > 0 for the system & the surrounding
If the side of a square decreases by 30%, then the area of the square decreases by :
A 14%
B 21%
C 49%
D 51%
Assume that the price of product Y decreases by 5% and the quantity supplied decreases by 2%. The coefficient of price elasticity of supply for product Y is:
A Negative and therefore Y is an inferior product.
B Less than one and therefore supply is-inelastic
C More than-one and therefore supply is elastic,
D Negative & supply curve is download slopping.
কোন এক পার্কের একটি দোলনায় ঝুলতে লোহার তার ব্যবহার করা হয়েছে। কয়েকজন ছেলে-মেয়ে দোলনায় যখন দোল খাচ্ছিল তখন এক বাচ্চার অভিভাবক লক্ষ্য করেন যে, ফুলন তার 1 m থেকে বৃদ্ধি পেয়ে 1.01 m হয়েছে এবং তারটির ব্যাস হ্রাস পেয়েছে। পয়সনের অনুপাত 0.2 হলে দোলনার তারের ব্যাস কতখানি হ্রাস পায় ? (The iron wires have been used in a park to swing. When some children are swinging, the length of the wire increases from I m to 1.01 m whereas the diameter of the wire decreases which is noticed by a guardian. If Poisson's ratio is 0.2, then how much the diameter of the wire decreases?) 
A 0.15%
B 0.18%
C 2.5%
D 0.25%
E 0.2%
The noun form of the word ' spontaneous' is -
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B spontaneity
C Spontaneousity
D spontaneausible
what is the noun form of the word 'Spontaneous" ?
A spontaneity
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