This is the word equation for the reaction:
Calcium monoxide + water >> calcium hydroxide + heat
This is the symbol equation for the reaction:
CaO + H2O >> Ca(OH)2 + heat
The source of the heat for the self-heated can is an exothermic reaction that the user initiates by pressing on the bottom of the can. The can is manufactured as three containers. A container for the beverage surrounds a container of the heating agent separated from a container of water by a thin breakable membrane. When the user pushes on the bottom of the can, a rod pierces the membrane, allowing the water and heating agent to mix. The resulting reaction releases heat thus warms the beverage surrounding it.[1]…
Put your hand in a bag with shortening around it. Close the bag around your hand. Put your hand wrapped in shortening in a bucket of ice cold water. Record with the stopwatch how long you can keep it in there. Continue this procedure five times, adding more shortening to the bag each time. Check your data to see if the more shortening added to the bag kept it warmer longer or shorter.…
Evaporative Cooling- The faster molecules escape and become a gas and the slower/cooler molecules left behind, causing a cooling effect.…
8. Once the tiny teddy stops burning, record the temperature of the water using the thermometer (swirl the water so it evens out).…
*Check the test tube every few seconds until frozen. Record temperature. Repeat with both antifreeze solutions…
Question: Which container will retain internal heat the longest? More specifically, which container will cool the fastest and which will keep the highest temperature for the longest amount of time?…
1. Find the mass of the 500 ml Pyrex flask. Record this mass in the Data Tables.…
In the second reaction we use the product of the first reaction (CaCl2) and change it back to calcium carbonate (CaCO3) by mixing CaCl2 with potassium chloride (2KCl).…
Therapeutic hypothermia and risk for infection articles done by Geurts, Marjolein and his team in 2014. They did observational studies suggest that infections are more common complication of therapeutic hypothermia. They also did random study to examine the risk of infection in adult patient treated with hypothermia. They collect information from each study about patient base line, cooling strategy and infection. The study concludes if the patient treated with hypothermia the infection not increased obviously while there was an increased risk of pneumonia and sepsis. (Geurts, Marjolein MD1, etal, 2014).Perioperative hypothermia can lead to different complications, for example infection, patient discomfort, bleeding, and recovery time is longer…
Although the light-producing reaction is not caused by heat and may not produce heat, the rate at which it occurs is affected by temperature. If you place a lightstick in a cold environment (like a freezer), then the chemical reaction will slow down. Less light will be released while the lightstick is cold, but the stick will last much longer. On the other hand, if you immerse a lightstick in hot water, the chemical reaction will speed up. The stick will glow much more brightly, but will wear out faster too.…
My article was titled “Therapeutic hypothermia following cardiac arrest: a review of the evidence.” The use of cooling the body below the normal physiology temperature has just being used in the past 10 years for post cardiac arrest patients (Collins & Samworth, 2008). In this article it discusses the facts and results of using hypothermic therapy in a post cardiac patient. It also explains that in trials done on this the outcome was that in people that had “cold therapy” had better mortality and less neurological problems.…
Applying a temperature probe is a common procedure when using a radiant warmer; however, another action should come first.…
Have you ever been out in the cold for so long that you start to feel dizzy? Confused? Well if yes, those were signs of hypothermia. Hypothermia is a life threatening medical emergency that occurs when the body loses heat faster than it can produce heat, which can cause vital organs to shut down.…
Experiencing grief is like jumping into freezing, ice cold water. Grieving is a strong, overwhelming feeling that is completely resistless; it is a universal state and a powerful personal experience. In the same way, jumping into ice cold water is overpowering as the iciness of the water hits hard. Whether it is caused by the death of a loved one, the ending of a serious relationship, or even a job loss, grief causes a never-ending, emotional pain to an individual that cannot be controlled. The everlasting pain is also experienced when jumping into freezing water. The harsh and severe impact of the freezing water sends disturbing thrills to one's body. Once immersed and engulfed in the icy cold water, it feels as if you are trapped and helpless;…
Bucher, L., Buruschkin, R., Kenyon, D., Stenton, K., Treseder, S. (2013). Improving outcomes with therapeutic hypothermia. Nursing, 43(1), 30-36. doi:10.1097/01.NURSE.0000423953.77012.d5…