Question

Water expands when hot and contracts when cold how does this explain what happened in your therometer can someone help

Answer 1

What did the thermometer look like?

Answer 2

A glass

Answer 3

molecules are rotating and vibrating all the time, when something is heated the molecules move around faster, colliding with one another, and occupy more space. When something is heated their movement increases and so they take up more space (expanding), when cooled the molecules slow down and bump into each other less and so occupy less space. When the water got warmer and expanded it had nowhere to go but upwards, so the water level rose and you were able to see an increase in the scale.

Answer 4

Thanks a lot of help

Answer 5

no probs

Answer 6

Technically water expands after freezing. If it didn't, it would become denser and sink rather than float. It's part of what makes water special.

Answer 7

^most definitely. The network through H-bonds becomes static and the molecules occupy more space because of the arrangement. Ge, Si, Bi, Sn and Ga also expand when frozen.



I'm not completely sure that the V would plateau after some point, but i can't imagine why it would decrease once the lattice was formed.