I have looked online for answers and have found no clarity on this and it is vexing me daily ever since the question came into my head. Someone please help.
In: 0
Because Hydrogen and Oxygen are gases that have electrons surrounding them, making them negatively charged
The negative charge of the electrons push other molecules away, so it has to be much colder to bring them together to form a solid
When hydrogen and oxygen bond together, those electrons are attracted to the oxygen molecule, which make a H2O like a magnet, one postive side and one negative side.
Those molecules dont repel each other, and bond easier, meaning it doesnt need to get as cold to cause them to slow down and link up
An important thing to thunk about is what is freezing? It’s the state in which particles don’t have enough heat energy to move away from each other. When two oxygen/hydrogen molecules get close to each other basically nothing happens (there is some interaction between the electron clouds but it is very weak) water on the other hand interact fairly strongly with itself, due to how the bonds between hydrogen and oxygen end up with more electron towards the oxygen and fewer towards the hydrogen. This means the negative oxygens of one molecule of water stick well to the positive hydrogens of another molecule, it requires more heat energy to break this bond leading to a higher freezing point.
Hydrogen and oxygen are elements and diatomic molecules and their characteristics are very different when molecularly bound with other elements. Water is not a mere mixture of hydrogen and oxygen, rather water is the result of a variety of chemical reactions.
The molecules in gas are much more spread apart and energetic than in liquid. The molecules in liquid are more spread apart and energetic than in solids. Gas > liquid > solid
When we have gas-> solid we go through two phase changes which requires much colder temperatures to slow down the molecules and bring them closer together.
Liquid to solid does not require as much energy input because only one phase change is occurring.
Because Fahrenheit doesn’t make any sense. Why would freezing point if water not be 0 and the boiling point 100? Makes no sense at all.
Heating stuff makes the atoms/molecules vibrate. When they vibrate too much to hold onto each other they start sliding around and you get a liquid. Hotter still and they just go flying off in different directions and you get a gas.
Water molecules are “stickier” and will hold onto each other at higher temperatures than gasses like oxygen. Most metal atom really like to grab onto each other and have very high melting temperature.
Helium is so inert that the individual atoms never stick to each other or anything else, and it never freezes and remains a liquid down to absolute zero (sort of – definitely not ELI5 stuff)).
Compounds commonly have different chemical properties from the elements that make them up. Sodium and chlorine are both toxic, for example, but sodium chloride is so safe to eat that we season food with it.
Latest Answers