The Effect Of The Marangoni Effect

2. How did concentration and/or volume differences affect the heat change (q) for each trial?

3. Convection the transfer of heat through currents of gases or liquids. (occurs passively as warmer air at the surface of the body rises away from the body and is replaced by cooler air – process is aided by wind or fans)

Hypothesis: If 3 drops of soap fit on the penny and 9 drops of water fit on the penny, then the cohesion is water molecules are attracted to other water molecules. Surface tension is the name we give to the cohesion of water molecules at the surface of a body of water. Independent Variable: This is the one you're changing in the experiment, so it's the type of solution that you're dropping on the penny.

16. Use the equation: q = m(SH)ΔT to solve for the amount of heat gained by the water from metal. You have

The anti-apoptotic mutations related to cytochrome c are not the only mechanisms acquired by cells in the development of a tumor. Another important hallmark of cancer is the alteration of cellular metabolism, also known as the Warburg Effect, which demonstrates an increased rate of glycolysis despite the presence of oxygen in tumor cells (Hallmarks). Due to the unlimited and uncontrollable division by tumorigenic cells, the Warburg Effect confers growth advantages compared to non-proliferating cells because it promotes the uptake of glucose, it produces less reactive oxygen species (ROS), and it generates ATP more rapidly than oxidative phosphorylation, all of which are considered to facilitate rapid growth and survival (1).

In this experiment, the velocity profile for a flat plate at zero pressure gradient of a boundary layer at two different stream wise points were acquired. The investigation was also based on and how changes in Reynolds number affect the velocity distribution within boundary layers. Parameters such as the Momentum Thickness, Displacement Thickness, Shape Factor, shear stress and coefficient of friction was also calculated to gain a better understand of boundary layers. The experimental values calculated were compared to the theoretical Blasius for laminar flow and Power Law Solutions for turbulent flow to see how they varied. It was found out the higher the Reynolds number the greater the boundary layer thickness. As the

A superhero that can be in more than one place at a time sounds awesome! Multiple Man known as Jamie Madrox would be a great superhero for you. He is a mutant with the power to produce duplicates of himself through physical touch. These dupes can later be reabsorbed, along with all of their memories and experiences. He could work on several projects at the same time. His body takes in the kinetic energy of different ranges to create differing number dupes. The side effect of his super powers, if touched or struck without being mentally prepared can cause him to make duplicates. After several years of duping himself the dups became independent and unpredictable, Multiple Man came to the conclusion that his personality from

This experiment is conducted in order to study a condensed system (solid-liquid) at constant temperature (atmospheric temperature). It should be noted that the atmospheric pressure is unlikely to be the equilibrium pressure for the system. However, equilibria in condensed systems are not very sensitive to pressure.

Microaggressions have been a relevant issue for minorities spanning decades. However, this problem has proven to be significantly more prevalent in the lives of today’s black community. Recently, I have become progressively more concerned about modern racial issues,such as the topic of microaggressions, that we face as a society because of the detrimental consequences I believe ignorance of the subject can have. Consequently, I felt that I should concentrate on utilizing metacognition in order to become more knowledgeable of these current affairs because, until now, I had a vague understanding of the subject due to my individual inexperience with microaggressions. Personally, I believe metacognition is the key to preventing the growth and continuance of racism and racist tactics. With this in mind, I began researching racial problems to gain more knowledge about the subject and found that I had much to learn. Like me, few are aware that microaggressions are such a frequent problem black Americans encounter because many do not know of the term microaggression due to the word not being officially identified until the 1970s. Professor Chester Pierce defined it as, “...the casual degradation of any socially marginalized group”(DeAngelis). Some may hold the juvenileness of the term accountable for many people’s unfamiliarity with the word. I agree with this notion and feel the phrase microaggression should become a more commonplace term if we are to eventually discontinue the

In a few short years, Seattle's techno scene has transformed from an insular community to one of the healthiest in the US. This revival is driven by energies old and new; by veteran ravers, young newcomers and transplants from elsewhere, like the southern port city of Tacoma. Samuel Melancon is at least partly responsible for this. He's a veteran of Seattle's experimental scene who only recently dipped his toes into techno, though the knowledge, experience and maturity he's brought to the community with his MOTOR label has made a far larger impact than even he could have foreseen.

This experiment was performed to determine the heat of neutralization between Hydrogen chloride (HCl) and Sodium hydroxide (NaOH). A temperature probe was used to measure the temperature of the reaction when the base (NaOH) was poured into the acid (HCl). The data was collected on logged on LoggerPro.

Purpose: To measure the heats of reaction for three related exothermic reactions and to verify Hess’s Law of Heat Summation.

Laminar flow and convective heat transfer of water/alumina nanofluid inside horizontal annuli with a streamwise moving inner cylinder are investigated theoretically. Employed model for alumina/water nanofluid is the modified two-component four-equation non-homogeneous equilibrium model that fully accounts for the effects of nanoparticles volume fraction distribution. Aiming to consider the effects of thermal boundary conditions on nanoparticles migration, two cases including constant heat flux at the outer wall and insulated inner wall (Case A) and constant heat flux at the inner wall with insulated outer wall (Case B) have been considered. The numerical results obtained indicated that the thermal boundary conditions at the pipe walls are significantly affecting the nanoparticle volume fraction distribution particularly in the cases where the ratio of Brownian motion to thermophoretic diffusivities is small. Moreover, increasing the velocity of the moving inner cylinder reduce the heat transfer rate for case A. In this case nanoparticles migration has negative effects on the performance of the heat transfer system as it decreases the heat transfer rate. In contrast, in case B, movement of the inner cylinder enhance the heat transfer rate and anomalous heat transfer enhancement take place when the thermophoretic force is dominant (larger nanoparticles).

Boundary layer analysis of Casson fluid flow over an upper horizontal melting surface of paraboloid of revolution in the presence of thermophoresis

Introduction: Every chemical change is accompanied by a change in energy usually in the form of heat. If heat is evolved, the reaction is exothermic, and if heat is absorbed, the reaction is endothermic. The energy change of a reaction that occurs at constant pressure is called the heat of reaction or the enthalpy of reaction (ΔHr). This quantity of heat is measured experimentally by allowing the reaction to occur in a calorimeter. In this experiment you will determine the heat of neutralization when an acid and a base react to form 1 mole of water. In a perfect calorimeter, heat is exchanged only between the reaction and the calorimeters water. Technically, some heat may may be absorbed the calorimeter. All calorimeters exchange some heat with its environment. This amount of heat is called the calorimeters heat capacity (the amount of of heat required to raise its temperature 1∘Celsius). We are going to “pretend” that our calorimeter is the perfect calorimeter.