Introduction Calorimetry can be defined as the science used to determine changes in an energy system based on heat exchanges with the surroundings (Kotz 201). These types of experiments have numerous applications such as determining heat of reaction, dissolution or fusion for a specific solution or determining specific heat for certain metals. To do this, scientists use a device that is known as a calorimeter, which measures heat transferred to or from an object (Beran 287). Calorimetry is an important
Introduction: In science, mass is basically the amount of "matter" in an object, while weight is a measurement of the gravitational force acting on an object. Weight can be measured with a scale that measures the pull of gravity of the earth on a certain object. However, mass is typically measured by balancing it equally with another known amount of mass. No matter where you are at a specific moment in time, mass will always stay the same. Unlike mass, your weight can differ depending on where you
purpose of this experiment was to identify what the unknown metal was by determining what the atomic mass was. To obtain the atomic mass of the unknown metal, the number of moles of H2 gas produced from the reaction was calculated. Introduction: This lab was an application of the kinetic- molecular theory of gases. According to this theory, it stated how gaseous particles are in a constant motion where they go at random speeds as well as directions.1 According to Thomas Graham, a Scottish chemist; he
mannitol, and concentration of PVP and the response parameters chosen for the optimization were Dissolution efficiency at 10 min and In-vitro dispersion time. Data analysis was carried out by multiple linear regression analysis. Differential Scanning Calorimetry (DSC) and Attenuated total reflection (ATR) reports shown that there is no interaction between drug and excipients. Results: Four optimized formulations F1 to F4 are selected from the numerical optimization technique. The prepared formulations
Since 1970s, image retrieval is an effective research area. Image retrieval is a technique used for browsing, retrieving, and searching images from a huge database. Due to the advance technologies in the internet and digital imaging devices has been explosive growth of digital images. So, image retrieval technique is an efficient and effective for maintaining large database. There are two image retrieval schemes: text-based image retrieval and CBIR. Text-based image retrieval can be outlined back
Thermal Stability of Epoxy Polymer Heera, K.2016 Department of Mechanical Engineering, Faculty of Engineering, National Defence University of Malaysia, Kem Perdana Sg. Besi 57000 Kuala Lumpur, Malaysia. Keywords: Epoxy, Epoxy+LENR Abstarct. This experiment presents the most common ways to increase the epoxy’s strength and stability by adding toughening rubber called LENR which stands for , liquid epoxidized natural rubber (LENR) , in which reduces the coefficient of thermal expansion, CTE , increases