Question

(b) How could John get dry, solid coffee from the brown liquid in the jug of coffee? Can some one help me with this

Answer 1

There are a few ways John could get dry, solid coffee from the brown liquid in the jug. One method is to use a process called freeze-drying. This involves freezing the liquid coffee and then placing it in a vacuum chamber where the ice sublimes directly into vapor, leaving behind dry coffee crystals.

Another method is to use a coffee dehydrator, which uses heat and airflow to remove the moisture from the liquid coffee, leaving behind solid coffee granules.

Alternatively, John could also use a traditional method of making instant coffee by evaporating the liquid coffee in a controlled environment, leaving behind dry coffee crystals.

It's important to note that these methods require specialized equipment and are not easily achievable at home. If you need help with this, it's best to consult a professional or a coffee expert who can guide you through the process.