Melting Definition and 267 Threads

Just thinking about those stories you hear about dresden and tokyo. The ones about people being melted alive in bunkers. Exactly what conditions would have to exist for that to be possible?

Hi.. I've finished this topic but I was confused in this question. The question is : The main reason for the high melting point of water compared to other group4 hydrides can be explained by: a.Ionic Bonding b.Covalent Bonding c.Dispersion Forces d.Hydrogen Bonding I'm not sure...

Any of u heard of him? the founder of Hutchison effect, I am very interested in his work but i really don't know how he did those werid things espcailly the melting of metals at room temperature, would someone care to explain a little about his effect? (or has any of you never heard of him?)

Global warming and "glaciers melting" In another thread I promised to go over all the alarming climate features like glaciers melting, sea levels rising etc, I think that was actually off topic over there so I start a fresh one. About the glaciers and ice sheets; yes, most glaciers are...

Hi, does anybody know why the melting points of materials drop down when its size gets smaller down to nano-scale? For a nano particle set in another high-melting-point material, how does its Tm go?

hey all, i'd just like to say thanks for attempting to help or just even having a browse. i have 5 questions in which i have some idea about but still very hard to produce an answer. 1: What is the difference in boiling point of water between sea level (p = 1 atm) and on top of a mountain...

What law or physics principle is that? Thanks for the help.

A person makes a quantity of iced tea by mixing 559 g of hot tea (essentially water) with an equal mass of ice at its melting point. If the initial hot tea is at a temperature of 94 C, what are the (a) final temperature of the ice tea (in oC) and (b) mass of the remaining ice? what are the (c)...

does anyone know why it is important to have the melting point of a solute not be higher than the boiling point of the solvent during recrystallization? --having a little trouble rationalizing this.

I have trouble figuring out the following question. Please help. ------------------------------------------------------------------------ Suppose you want to melt a piece of ice and boil the resulting water by using a microwave oven. The radiation is incident upon one side of the ice which...

what is the relationship between e-modulus and melting temp?

I have a sample of 25 % acetanilide with 75 % caffeine. I record a melting point range of 198 - 240 degrees celcius acetanilide's melting point is 114.3 caffeine's melting point is 238 What would cause this huge experimental range? My thinking is that the acetanilide is...

Boiling/ Melting... I take it everyone knows the graph of temperature when you heat ice / water - with the flat bits when it melts and boils. My question is why is this the case? Obviously the heat energy you are putting in is going to kinetic energy of the particles when the graph is not flat...

Problem 2. Liquid nitrogen, which has a boiling point of 77 K, is commonly used to cool substances to low temperatures. How much energy must be removed from 1.4 kg of gaseous nitrogen at 77 K for it to completely liquefy? Assume the latent heat of liquid nitrogen is 2.01 *10^5 J/kg Answer...

Ok, so you've got a glass of water with some ice (the ice is floating). After the ice melts, does the water's surface level a) rise? b) lower? c) stay the same? (and why?)

stuck in explaining this problem A glass of water contains a large ice cube the glass can hold no morw water the ice is floating in the water what will happen to the water level when the ice melts?

Who can calculate the meltingpoint for me of a mixture of metals with 40% Sn and 60% Pb?