Oxford Capacity Analysis

Introduction Ever since it opened around 1864, John Lewis, as a whole brand, has grown in to one of the UK’s leading departmental stores and enduring brands. John Lewis is one of few that boasts the only remaining traditionally English brand with a focus on quality, value-for-money and practicality (John Lewis, 2008). John Lewis specializes in a number of departments that range from selling food and drinks, to clothes, household and electrical goods. In addition, John Lewis has recently…

Heat of Combustion of Magnesium Hypothesis: Hess’s law states that “the enthalpy change for the conversion of reactants to products is the same whether the conversion occurs in one step or several steps” (DiGiuseppe et al,2012,p.314 ). A series of two experiments will perform in this lab in order to find ΔH1 and ΔH2 . In addition, ΔH3 will be obtained by reference. It is predicted that the combustion of magnesium will have a negative enthalpy, since combustion is an exothermic reaction. Also…

Overall, these properties allow it to: provide habitats for animals; transport substances around organisms; regulate and participate in cell reactions and help animals maintain a constant blood temperature. Water’s small size is important for plants as it is able to diffuse by osmosis into plant cells which creates turgor as the vacuole swells pressing against the cell wall. This pressure helps plants stand up straight and not wilt causing death As water is lost by transpiration from the…

The term Thermochemistry refers to when heat is evolved or absorbed during a chemical reaction. When calculating the amount of energy, the number will always be expressed as a positive number. A negative sign will indicate whether the energy is evolved or absorbed. If the sign is negative, then the energy is evolved and if the sign is positive, then the energy is absorbed. The amount of heat that is released or absorbed will also be in units of Joules or Kilojoules per mol. There are two other…

Evaporation: The rate of heat transfer in the evaporator is calculated using equations 10 and 11 Q_in=(εC)_evap (T_(in,evap)-T_evap ) (10) Where ε is the effectiveness of the evaporator, C is the capacitance rate for the air or chilled water passing through the evaporator. Tevap is the temperature of refrigerant in evaporator and Tin, evap is the temperature of the air or chilled water at the inlet of the evaporator. Equation 11 express Qin in terms of enthalpy. Q_in=m ̇_ref (h_4-h_1)…

consequence of a decrease in the specific heat capacity of the solution compared to pure water. The specific heat capacity drops because the specific heat is lower for salt. Hence, when water is mixed with salt the specific heat value drops. In other words, it takes less energy to raise the temperature of the salt water by 1K than pure water. This means that the salt water heats up faster and eventually gets to its boiling point first. The heat capacity of NaCl has been found to be higher than…

Abstract: The purpose of this lab was to show the different absorption and emission rates of three different substances. Radiation laws, albedo, and specific heat are all reasons why this is achievable. An agreed upon hypothesis is that the sand will absorb the most heat due to the number of molecules, the moss will absorb the second most because it doesn't have as many molecules as sand, but it has more than water, which isn’t as complex. To complete this experiment, you need three beakers of…

who moms they are, they will always have someone who recognizes them as a mother, mom, momma, mum, etc. For example Ashley has a biological mother and she also has two other wonderful women she would also consider to be her mother. According to the Oxford English Dictionary Mother is an "Old English mōdor, of Germanic origin; related to Dutch moeder and German Mutter, from an Indo-European root shared by Latin mater and Greek mētē ." The word Mother has a form of initial respect. When Ashley…

Shakespeare It is difficult for people today to picture the image of Shakespeare, or imagine how people revelled in front of Shakespeare’s stage. Though limited materials were left to satisfy people’s curiosities of his personal life, a great amount of his literature works were survived to be appreciated and evaluated. It is undoubted that Shakespeare was one of the most important people in England; because he elevated the social developments in England during the monarchs of Queen Elizabeth I…

Cha-Ching! Cha-Ching! Cha-Ching! The world revolves around money. People have to have money to buy things, own a business, and run a business. Companies have to earn money in order to be able to run it while all other companies also have to have money. These companies should have people to help handle the money and know where the money is being used. The people they hire are called accountants and financial managers. Accountants and Financial managers have to have an education to learn about the…