Energy- the capacity to do work Law Of Conservation of Energy- Energy can be converted from one form to another but can not be created nor destroyed Potential Energy- energy due to position or composition Kinetic Energy- energy due to the motion of the of the object and depends on the mass of the object and its velocity. KE= 1/2mv^2 Heat- is the transfer of energy between two objects. Work- is force acting over a distance Pathway- The way that energy transfer is divided between work and heat
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Practical 2.1- The Effect of Temperature on Membranes Objective To investigate the effect of temperature on membrane structure Introduction Beetroot Pigments Beetroots contain Betalains which are the red pigments present in the cell vacuole. Betalains are soluble in water and they contain nitrogen. Betalains extracted from beetroot is commonly used as food dye because it is not known to cause any allergic reactions. Beetroot Picture taken from http://tipdeck/how-to-cook-beet-root Structure
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How to Carry Out Aseptic Techniques in a Batch Culture and in the Laboratory | | | | | | | | | |The batch vessel should be sterilised beforehand using steam. The nutrient medium that is added to the vessel |
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Chapter 6 Introduction to thermodynamics Topics First law of thermodynamics. Definitions of internal energy and work done‚ leading to dU = dq + dw. Heat capacities‚ Cp = CV + R. Reversible and irreversible processes. Various types of expansion‚ isothermal‚ adiabatic. CV and Cp according to kinetic theory‚ monatomic gases‚ other gases. The meaning of temperature‚ empirical temperature scale‚ perfect gas scale‚ the second law of thermodynamics‚ thermodynamic temperature scale. So far‚ we have concentrated
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CHP Laboratory Analysis Introduction Combined Heat and Power system is a technology that produces electricity and thermal energy in the same process. In this way‚ optimum use can be made of the energy available from the fuel. During the electrical power generation‚ heat is lost‚ which is used to increase the internal energy of the fluid‚ water in this case‚ through the exchangers. Hot water is either directly pumped to the end user during the winter season of the year or it is used to
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Household energy consumption is examined in the specific context of home heating expenditures. Analysis of home heat costs across stages of the family life cycle reveals a distinctly different pattern than previously found when total household energy costs were examined. In contrast to the curvilinear pattern where expenditures peak during middle stages of the life cycle‚ these data show a positive linear relationship where higher costs are associated with elderly consumers. The research focus is
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TMA03 Covering Block 3 Question 1 (a) An impactor mass of 45 kg is used to represent the weight of child reasonably regarded to be involved in an accident with glass or plastics. (b) The BS standards gives the manufacturers a clear set of standards that their products need to achieve to be safe and fit for the purpose that they have been designed for. It also gives the purchaser the expectation that the item has reached the standards set down by the BSI and will be a safe
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The majority of my results produced the expected bell curve on my graph. However‚ I believe due to human error the results were incorrect between temperatures of 60Ëšc and 80Ëšc causing this area of my graph not to follow the pattern of my initial prediction. I have also noticed that the highest rate is at a slightly higher temperature than I expected‚ though this may be due to the large difference in temperature between each sample. As the temperature was increases the molecules were
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Comparing the enthalpy changes of combustion of different alcohols Aim In this experiment I will investigate the enthalpy changes of combustion. In particular I will be investigating the enthalpy change of combustion for different alcohols. I hope to investigate some of the homologous series alcohols‚ as well as a few structural isomers of these alcohols. Background & theory Enthalpy cannot be measured. What we can actually measure is the enthalpy change from the reactants to the products.
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Whether it be in the form of a ribbon‚ medal‚ or trophy‚ participation is commonly rewarded within organized sports teams as a way to give children incentive to try sports and engage in physical activities. While these trophies are intended to reward children for their contribution‚ the praise is undeserved‚ and will potentially create more harm than good in the future. A participation trophy is a tangible reminder that a child showed up to a game or tournament‚ but it has no fundamental value besides
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