In which direction does a spontaneous process proceed ?

Explanation

### Step-by-Step Solution:

1. **Definition of Spontaneous Process**:
- A spontaneous process is defined as a process that occurs naturally under specific conditions without the need for external energy. It can occur by itself or may require some initial input, but once started, it proceeds without further intervention.

2. **Characteristics of Spontaneous Processes**:
- Spontaneous processes are characterized by their tendency to occur naturally. They are often irreversible, meaning they cannot easily be reversed to return to their original state without external influence.

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