Why do we use hot water in making experiments not coffee or tea?

Hot water is commonly used in laboratory experiments for several reasons:

Dissolving Substances: Hot water has a higher dissolving power compared to cold water. Many substances dissolve more readily in hot water, allowing for the preparation of solutions and reactants.

Chemical Reactions: Many chemical reactions proceed faster at elevated temperatures. Using hot water can accelerate the rate of reactions and facilitate the observation of results within a shorter time frame.

Enhanced Diffusion: Diffusion, the movement of particles from a region of higher concentration to lower concentration, is faster in hot water. This can be advantageous in experiments where the mixing or spreading of substances is required.

Sterilization: Hot water can be used for sterilizing equipment and materials. High temperatures can kill microorganisms, reducing the risk of contamination and ensuring the accuracy and reliability of experimental results.

Extraction and Separation: Hot water is often used in extraction processes to separate desired components from a mixture. For example, in the extraction of plant compounds, hot water can help release and dissolve the compounds of interest.

Solubility Studies: Solubility experiments involve determining the maximum amount of a substance that can dissolve in a given solvent. Hot water is used to study the effect of temperature on solubility and to observe changes in the solubility of substances at elevated temperatures.

Experimental Control: Using hot water provides a consistent and controlled temperature environment for experiments, allowing researchers to study the effects of temperature on various processes or reactions.

Safety: While using hot water requires caution to prevent burns, it is generally safer than using other sources of heat, such as open flames or hot plates.

Cost-effectiveness: Hot water is a readily available and cost-effective heating medium, making it a practical choice for educational and research laboratories.

In contrast, coffee and tea are not typically used in laboratory experiments because their composition and properties can vary, potentially introducing unwanted substances or interfering with the experimental outcomes. Furthermore, using hot water allows for better standardization and control of experimental conditions.