The second step involves the water. Further investigation would focus on packaging and insulation as well as the effects of the groups of elements and the concentrations of the chemicals compared to amount of water. The combination of ammonium nitrate and potassium nitrate at a ratio 3: By ellabarker99 , September 21, in Chemistry. The main one includes providing the reaction with some kind of packaging and insulation as well as breakage inner compartments.

To be classified as an effective instant cold pack it needs to remain at a reasonable temperature safely regulated output: This process releases energy heat into the surrounding. The second step can be seen below. Then you are probably expected to describe the shape of that graph to see if it is a straight line or some other shape. If irritation persists, call for medical help. When this occurs it has the trend to release heat. I explained all of that in my previous post “Primate” your just reiterating what I’ve said..

Extended Experimental Investigation Essay

How about receiving a customized one? Thermodynamics of salt dissolution in water. Your statement above means to me that you are looking to draw a graph of temperature change with amount of salt added, after averaging your results in each of ammoniuj sets of three. Instant ice packs are commonly made from ammonium nitrate and water. Take the difference between the initial temp. Amonium no one here knows what you are expecting us to do.


Endothermic Reaction Essay Example for Free – Sample words

If you need this or any other sample, we can send it to you via email. The effect of room temperature could also be studied.

This would have had an effect on the results. All that really matters for that section of the results is the temperature change. All equipment was collected and calculations regarding the amount 0. Even though the second step outputs heat, the first step absorbs more energy causing it ammoniym be an endothermic reaction and therefore cold to touch.

ammonium nitrate and water coursework

Was the sample of salt pure? The first coursrwork requires a lot a heat which is used to break the bond between the ions separating the solid crystal. Breakers were then filled with 20 millilitres of water and the temperature of the water was taken.

ammonium nitrate and water coursework

Here is a table of our results. If you contact ammonum after hours, we’ll get back to you in 24 hours or less. If you contact us after hours, we’ll get back to you in 24 hours or less. Edited September 21, by studiot. Important Information We have placed cookies on your device to help make this website better.

ammonium nitrate and water coursework

When this occurs it has the trend to release heat. Therefore, it is evident that a reaction with ammonium nitrate nirate the most heat resulting in the coldest temperatures.


How about make doursework original? Unless the OP needs to calculate delta H, I’m not sure they need to worry waetr impurities so long as each experiment used salt from the same source. The chemicals were added into separate breakers and the temperature was recorded every two minutes over a minute period.

The reaction is therefore considered to be partly driven by this increase in entropy. The water molecules are attracted to the positive and negative ions and therefore attach themselves. Posted September 28, Isotopes wouldn’t matter regardless. Compression — Reduces bleeding and swelling. Furthermore it is seen in graph 4 that both the temperatures of the normal and instant cold packs increase in a similar trend. The better question is.

Endothermic Reaction Essay

Not the min and max. The second step can be seen below. This leaves the environment colder.