chemistry question, pls help me with this..?

Question

What does the boiling and freezing temperature of substances depend on? (apart from the crystal lattice)..

..hm, okay, but how can you decide, for example, whether methane or ammonia has lower freezing temperature?

Answer 1

The kind of matter you are trying to boil or freeze, each element, and compound has it's own, though many compounds burn instead of evaporate, even mixtures can change the boiling/freezing point, like salt in water. The amount of pressure can also make something boil or freeze at different temperatures, like in cooking where the directions are different at higher altitudes, the atmospheric pressure is different..

Answer 2

It also depends on whether or not the substance is pure. Impurities within the substance can either raise or lower both boiling and freezing temperatures.

Answer 3

Temperatures.

Answer 4

good question! I see your confusion here. truthfully, once you upload fireplace to wax then it particularly is slightly the two. Wax will soften without fireplace although so in simple terms melting wax is a actual substitute whilst fireplace isn't in contact. enable me attempt to describe. a million. fireplace is a chemical reaction. It needs oxygen and yet another flamable cloth with a view to ensue. Oxygen is an extremely reactive ingredient and whilst it reacts with yet another ingredient or compound to create new compounds it supplies off warmth (pronounced as an exothermic reaction). 2. Candle wax isn't an ingredient yet a mixture of compounds. the climate that make up candle wax are not all bonded chemically on the undemanding point. a good sort of it fairly is barely stirred in genuine nicely so as which you won't be ready to confirm it. it is not linked to something, in simple terms being held there via different compounds that variety in shape. that's pronounced as a homogeneous answer. in case you combine oil and water at the same time and shake very o.k., you may get lots of the oil to not flow at present to the suitable. lots of the oil gets suspended in the water. in spite of the incontrovertible fact that, the two do not chemically combine, they only combination. the ideal way as an occasion this may well be to combine oil and water at the same time fairly nicely, then freeze it rapid earlier the oil can totally become independent from the water. as quickly as you have carried out this, you efficiently have a candle. The oil in the frozen water will burn as quickly as uncovered to the air, melting the ice inflicting greater oil to be uncovered. It won't burn all that rapid (in simple terms like a candle) as a results of fact all the oil in the water would not get uncovered at as quickly as. that's as a results of time it takes the fireplace from the little drops of oil to soften the encompassing ice. So, the respond on your question is it particularly is the two! it fairly is a actual substitute as a results of fact the warmth from the fireplace melts something of the candle it fairly is way less flammable. the fireplace is a chemical reaction to compounds in the wax that are greater flamable than something of the wax. Sorry for the size yet who might have theory that in simple terms letting a candle burn is truthfully a complicated chain of activities.

Answer 5

density and the atomic mass