Uniformly sweet taste of Tea or Coffee is due to

Options

A. Spereading
B. Osmosis
C. Permeability
D. Diffusion

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the reason behind the uniformly sweet taste of tea or coffee.

2. **Identifying the Key Process**: The key process that contributes to the uniform sweetness in tea or coffee is diffusion.

3. **Defining Diffusion**: Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration.

4. **Application of Diffusion in Tea/Coffee**: When sugar is added to tea or coffee, it initially has a higher concentration in the area where it is added.

5. **Stirring the Mixture**: Stirring the tea or coffee helps to mix the sugar thoroughly, which accelerates the diffusion process.

6. **Movement of Sugar Molecules**: As the sugar dissolves, the sugar molecules move from the area of higher concentration (where the sugar was added) to areas of lower concentration throughout the liquid.

7. **Resulting Uniform Taste**: Eventually, this movement of sugar molecules leads to a uniform distribution of sweetness throughout the beverage, making it taste equally sweet no matter where you sip from.

8. **Conclusion**: Therefore, the uniformly sweet taste of tea or coffee is due to the process of diffusion.