(a)
Interpretation:
The energy of the universe has to be predicted.
Concept introduction:
Spontaneous process: A process which is initiated by itself, without the help of external energy source is called spontaneous process. All spontaneous process is associated with the decrease in free energy in the system.
First law of thermodynamics: According to first law, the total energy of the universe remains constant.
(b)
Interpretation:
The creation or destruction of energy has to be predicted.
Concept introduction:
Any natural process or a
(c)
Interpretation:
For the energy change of system and surroundings should be explained.
Concept introduction:
In thermodynamics a process is spontaneous if it is taking place by itself without the help of external energy. All spontaneous process will have highly energetic initial state than the final state. This indicates that while the process occurs, there is a decrease in free energy of the system. The increase in randomness also favors the spontaneity of a process.
In non-spontaneous process, there is a requirement of external energy source. The free energy of the system increases. The entropy decreases in non-spontaneous process.
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CHEMISTRY(LOOSELEAF) W/CONNECT+EBOOK
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