Temperature

In this lab procedure, lab groups were split by the type of lab procedure they would perform. Half the lab groups were tasked to perform simple distillation while the other half performed a fractional distillation. Before beginning the procedure for the fractional procedure, materials were gathered. The lab procedure with the lab manual called for a short neck round bottom flask; however, this was not followed during the actual lab. Instead, the long round bottom flask was used. In addition to…

Order Disorder Humans strive for a balance within their lives in order to demonstrate an equilibrium and security. In contrast, by expressing the laws of thermodynamics, it is stressed that through the process of discovering a balance, obstacles can be achieved. Thermodynamics highlights the stream of science attentive to heat and conversions to different forms of energy and work. Not only does the thermodynamic state define volume, temperate and pressure, it will contain heat sources giving a…

The concept of energy is very important to know because it is used in everyday life. Energy is used when getting out of bed just to dread going to school, heating up left overs, and even boiling some water. Energy cannot be destroyed or created, only passed from one object to another. A great example of energy is the transfer of heat. An ice cube sitting in the hand of a person can show energy at work. Heat from the hand causes the cube to melt and change forms into liquids. To understand energy…

chemical and change it from a solid phase directly into a vapor. Another reason as to why sublimation was used is because the caffeine can be separated from its contaminant due to the fact that it does not sublimate or it sublimates at a higher temperature than caffeine. We believed that since the caffeine came directly from tea leaves, that the contaminate was chlorophyll. The chlorophyll would also be the reason that the crude caffeine product had…

more reactant then K will shift to the right (towards the side of the product). If you increase the pressure, then according to Le Chatalier’s principle K will shift to the side with the fewer number of moles. Temperature also has a direct effect. For example when you increase the temperature in an endothermic reaction,…

The concentrations of difference between the membrane phase and feed phase based on the mechanism of mass extraction. In the case of feed solution represented radioactive simulated waste solution and dissolved in 0.5M HNO3. In the feed phase decreasing with H+ concentration. pH values at 2.5 into 5.5 in the feed phase. Fig,s(5a-5c). Shown the effect of hydrogen ion concentration in the feed phase and studied of pH range 2.5-5.5 for 0.5M HNO3. Stripping solution of 0.05M of EDTA. Initial…

3.1.3. TGA analysis Thermal gravimetric analyses (TGA) were recorded under N2 atmosphere over the temperature range of 25- 800 oC at a heating rate of 15 oC/min, to evaluate both the composition and the thermal stability of f-silica and AgNPs/f-silica. As shown in Fig. 1D the mass loss noticed between 25 oC and 180 oC represents the physically adsorbed water. Adsorbed water accounted 7.4%, 6.43% and 2.2% for f-silica, AgNPs/f-silica sample using [Ag+] = 0.005 M, and AgNPs/f-silica sample using…

Felines can be viewed as a "meticulous eaters" of creatures. They connect great significance to the temperature of nourishment, and now and then due to that sustenance "cool" and declined to eat. For this situation, we can warm the food too close to the body temperature of the feline, most likely 38-39.2 degrees Celsius (or 100.5 to 102.5 degrees Fahrenheit); warm sustenance to send the possess a scent reminiscent of the feline's craving…

the second part will determine the number of moles of nitrogen, that will lead to determine the value of R by measuring P, V, and T. Theory/Principles A physical law such as Boyle’s law states that P, the exerted fixed mass of gas at a constant temperature and V, the volume have a relationship. Their kind of relationship is V=f(P) relationship and it is believed that PV go together to remain constant. A water manometer is an instrument used to measure pressure. The model of kinetic theory of…

Chapter 3 Process description and modeling 3.1 Process Description of Propylene Glycol Production Process The physical properties of propylene glycol are colourless and clear syrupy liquid when exists at room temperature. Besides than in liquid form, it also may exists in vapor form in air. In order to produce a colourless and odourless chemical, propylene glycol (C3H8O2, PG) involve in the reaction of propylene oxide and water. This involve the process of the hydrolysis of propylene oxide…