Chemistry and Biochemistry Academy

The rate of reaction of a particular reaction often increases as one increase the temperature. However, how can this belief be proved using Arrhenius equation? According to the Arrhenius equation, the rate constant (k) is obtained by the ratio of Ea to RT, in which Ea denotes required energy while RT is the available thermal energy. The Arrhenius Equation is given by: k=Ae - (Ea/RT) When Ea is larger, it results in slower reactions. On the other hand, when RT is large, it leads to faster rate of reaction. Larger Ea gives smaller rate constant k, but larger RT produces larger rate constant (k). Larger rate constant increases the rate of reactions.  By using Arrhenius equation, one can easily see that when the temperature is increased, the rate constant will also increase. Let us consider these two scenarios. In the first scenario, Ea=120,000 Joules/mole, R=8.31 mol -1 K -1 , and K=373K.In the second scenario, Ea=120,000Joules/mole, R=8.31 mol -1 K -1 , and K...

Heart anatomy overview Heart anatomy is looked from the right side of the supine patient using a median sternotomy incision. The heart structures which are always seen at this viewpoint encompass the aorta, pulmonary artery, right atrium, right ventricle and superior vena cava. The medial movement of the heart on the right side shows the right pulmonary veins and right atrium. While medial movement on the left side of the heart reveals the left pulmonary veins, left ventricle apex and left atrium. Posterior view  Summary of a case Study The case study is about Dr. Baker and Tiffany, a mother of a son(Caleb) who has cardiac problems. Caleb appeared to be breathing too hard and was unable to eat. Tiffany did not understand the condition of her son. She tried all methods which could assist her son. However, all were not successful. She became aware of Caleb’s condition when she brought him for his one-month check-up. Dr. Baker checked Caleb for a full day of m...

The Scientific method consists of six stages. These steps are research question identification, literature review, hypothesis formulation, variables operationalization, data collection, data analysis and testing of hypothesis. Research question identification It is the initial stage of a scientific method. The researcher may have several questions about a topic. However, not all these questions can result in scientific research. Researcher should choose research questions that can sufficiently provide information about the researcher’s topic of interest. Literature review  This the second stage of a scientific method. Researchers have to inform themselves satisfactorily. They can only achieve this by examining relevant literature related to their topics of interest. This stage helps the researcher to learn more from already known information about interest topics. Furthermore, it aids them in coming up with new research questions. Hypothesis formulation This is ...