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Hot Water cools,though kept in a closed container,because of its surroundings.Heat escapes into the environment till the temperature of water(system) and surroundings become the same. Its simply the transfer and exchange of energy.

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14y ago

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Is it possible to have pure liquid water at -1celuis and why?

Yes, it is possible to super-cool water if it is very pure, the container is very clean and the water is kept from even tiny movements. I am not sure how to explain the principles, but it has something to do with some small impurity or disruption being needed to 'seed' the process of forming crystals.


Why are desk drawers and cupboard doors kept closed unless you are taking something out or putting it away in the laboratory?

Desk drawers and cupboard doors in a laboratory are kept closed to maintain a clean and organized workspace, which reduces the risk of accidents and contamination. Keeping them closed also minimizes distractions and prevents clutter, allowing for better focus on tasks. Additionally, closed storage helps protect sensitive materials and equipment from spills, dust, or unauthorized access.


Is it possible to have an explosion without oxygen?

Sure, e.g., liquid nitrogen will explode at room temperature if kept confined in a container such as a capped bottle.


Why is compass needle kept in a closed glass vessel?

To keep things from getting lost ... remember that the very first compasses were NOT closed, they consisted of a bowl of water with a load-stone (fastened to a piece of wood) floating - even earlier one just had a piece of string tied to the lode stone.


What happens to water when it is kept in open?

The water will be subject to evaporation by wind and heat from the sun. Eventually, the vessel containing the water will dry out.