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Why do cold packs feel cold?
In a chemical ice pack you have to break some sort of seal so that two chemicals react. The chemicals that are used are chosen because when mixed they create an endothermic reaction causing it to feel cold
How is energy transferred when an instant cold pack is put on muscle injury?
Heat energy is transferred by conduction from the muscle to the cold pack.
What product absorbs thermal energy?
Cold Pack
Does the application of heat and cold pack require a physicians order?
Yes
What is a power pack used for?
It all depends in what context. Electrical power packs usually convert mains power to a lower voltage by use in electronics. A mechanical power pack can refer to an electrically driven hydraulic pump for supplying a hydraulic system.
What is the difference between sims expansion packs and stuff packs?
expansion pack expands the game. stuff packs give you items
What is the difference between book bag and back pack?
well back packs r put on ur back but book bags r to be rolled so book bags have wheels and that is the difference between book bags and back pack
Do Walgreen's cold pack contain ammoniun nitrate?
is there ammonium nitrate found in walgreens cold packs
Can you refreeze or refrigerate an instant cold pack?
can you refreeze cold packs
Why hot and cold packs are very convenient to use?
Both types (hot and cold) of packs can be easily transported and used in travel. They do not take up a lot of room in a bag or box. If someone were to get hurt, a cold pack can quickly be used to help them. The same goes with a hot pack.
What is the difference a pack camel and a riding camel?
pack camels carry packs while riding camels you can ride on thanks vote.
What is the present tense of pack?
Pack is a regular verb. The present tense conjugations are I pack, you pack, he/she/it packs, we pack, they pack.
Is urea dangerous in a cold pack?
In cold packs is usedAmmonium nitrate. It's dangerous because it can explode. But for this it must be absolutely dry.In a cold pack it is in a water solution. Nevertheless you shouldn't eat it or contact it a long time with your skin. In case of a damage of the cold pack you can just wash it away with water.
What is the value of 1989 fleer cello packs?
Between 1.25$ and 2 dollars a pack.
Who invented instant cold packs?
The first of the instant cold packs was a liquid-type invented by Albert A. Robbins and patented August 11, 1959. Robbins' "Chemical Freezing Package" involved and outer pouch containing two separate compartments for water and ammonium nitrate that would mix and freeze when the user split a perforation between the two - say by hitting or snapping the package as we would with the modern variety. Robbins' patent was assigned to Kwik-Kold of America. Parent company Cardinal Health continues to market this, and the more recently invented gel-type cold packs, to this day.
How do cold packs work?
Instant hot and cold packs are used by athletes to quickly and conveniently treat an injury. They last for about 20 minutes. The packs take advantage of chemicals that either absorb a lot of heat or release a lot of heat when dissolved in water. When a chemical process absorbs a lot of heat it is called endothermic. When heat is released, it is called exothermic. In cold packs, ammonium nitrate is used because it absorbs a lot of heat when it dissolves in water. The water and ammonium nitrate are in separate compartments in the pack. When the cold pack is needed, the chambers are broken and the ammonium nitrate dissolves in the water, absorbing heat and making the pack as cold as 0C. In hot packs, calcium chloride or magnesium sulphate are used, along with the water. They release heat when the chambers are broken and the chemical dissolves in the water. A hot pack can reach a temperature of 90C. :)
What are a pack of gray wolves called?
All groups of wolves are called packs. There is no difference. Hope this helped! :) -Koshi the wolf
