During the experiment, the reaction took place in a glass beaker which theoretically is only an endothermic reaction and not a instant cold pack. Hi there, would you like to get such a paper? The process in which it absorbs heat involves two steps; one being that is breaks into ions and the second that the water molecules are then attracted to these charged ions. Cold packs are based on the principle of endothermic reactions, which means a reaction that absorbs heat from the surrounding resulting in a temperature drop. These changes occur due to the movement of electrons breaking and forming new chemical bonds. Ice therapy — Cools tissue, and reduces bleeding, swelling and pain. Following on from recent posts in this thread:
For my chemistry controlled assessment, I chose to investigate the effects of changing the mass of salt added to a constant volume of water. Posted October 3, Sorry, but copying text is forbidden on this website! Endothermic Reaction Essay Essay Topic: Is what is the enthalpy change of the system based on the thermodynamic properties of each salt’s dissolution process in an aqueous solvent. The reaction of ammonium nitrate and the absorption of heat can be broken down into two step, both of which include energy changes.
Sorry, but nitrahe text is not allowed on this site. Salts contain ions, which are charged particles. Molarity, will not give you an efficient measurement, because since your measuring enthalpy change of each salts’ dissolution process, temp.
Extended Experimental Investigation Essay Example for Free – Sample words
Posted October 4, edited. Grams will not give you accurate data, you need to use moles. However lots of good chemists will be happy to discuss with you so fire away and ask. During the experiment, the reaction took place ammoinum a glass beaker which theoretically is only an endothermic reaction and not a instant cold pack.
The water molecules are attracted to the positive and negative ions and therefore attach themselves. If watwr need this or any other sample, we can send it to you via email. If you need this or any other sample, we can send it to you via email. Posted September 28, Sorry, but copying text is not allowed on this site.
It is also recommended that the pack does not stay on for longer than 20 minutes and to allow the skin to recovery between treatment a hour break be is necessary. By ellabarker99September 21, in Chemistry.
Not the min and max. We were doing a similar experiment, however, our group chose ammonium nitrate as the salt to be tested. I was used ammonium nitrate salt.
Tfinal – Tinitialto measure the amount of heat exchanged between the system. Ammonium nitrate NH4NO3 as previously stated aand the most common chemical to be used in the making of an instant ice pack.
Extended Experimental Investigation Essay
There is also a comparison graph graph 4 to highlight the differences between the normal cold pack and the ammonium wateer and potassium nitrate with the 3: The chemicals were added into separate breakers and the temperature was recorded every two minutes over a minute period.
Here is a table of our results. Create an account nitfate sign in to comment You need to be a member in order to leave a comment Create an account Sign up for a new account in our community.
Endothermic Reaction Essay
Wash off with water. Following on from recent posts in this thread: The created instant cold pack was compared to a normal frozen cold pack. How to cite this page Choose ckursework format: If ammonium nitrate is added to water then the water temperature will decrease. Accessed May 22, Your Answer is very helpful for Us Thank you a lot! Sorry, but copying text is forbidden on this website!
Endothermic Reaction Essay Example for Free – Sample words
When measuring amounts, weighing the various chemicals and taking temperatures there is room for marginal human error. The cold temperatures increase the flow of nutrients, assist in waste removal, increases znd and encourage healing; essentially, it means one will heal faster.
Overall ammonium nitrate proved to be the most effective individual chemical.