Introduction At any particular wavelength the absorption of light when visible light passes through a solution depends on two factors: * The length of the light path * The concentration of the colored path The connection of these two variables is known as the Beer-Lambert Law: Absorbance (A) = ε c l Where ε is the absorption coefficient C is the concentration of the compound And l is the length of light usually 1cm When I is constant‚ this proves a linear relationship between
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Dissolution[edit] In the most common situation‚ a tablet is ingested and passes through the esophagus to the stomach. The rate of dissolution is a key target for controlling the duration of a drug’s effect‚ and as such‚ several dosage forms that contain the same active ingredient may be available‚ differing only in the rate of dissolution. If a drug is supplied in a form that is not readily dissolved‚ the drug may be released more gradually over time with a longer duration of action. Having a
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INTRODUCTION: In atomic spectroscopy the samples are vaporized at 2000-8000k. The process of this involves two steps ‚ one is atomization of sample and the other is absorption of light radiation from light source. The atoms in the vapour are measured by absorption or emission at characteristic wave lengths. The main usage of this was to detect one element from another in the complex sample which has taken ie.‚ it has ability to perform multiple element analyses. Absorbance should obey Beer’s law
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Absorption Costing vs. Variable (Direct) Costing Absorption cost systems are widely used to prepare financial accounts. These systems are designed to absorb all production costs (variable or fixed) into costs of units produced. Absorption costs techniques allow manufacturing costs to be traced and allocated into product costs. There are different types of absorption costing systems: job order costing‚ process costing‚ and ABC costing. In job order costing‚ costs are assigned to products in batches
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Why do darker colors absorb more heat than lighter Colors? Have you ever wondered why on a hot summer day you would be wearing a black or dark blue t-shirt and in like 5 min you’ll already be sweating and it would be really hot while your friends that are wearing white or yellow t-shirts are all ok and don’t seem affected by the heat. Have you ever thought what might cause this to happen? Well the color of our clothes is determined by a chemical dye that is added to the cloth at the factory
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Measuring the Absorption Coefficient for Some Common Materials Used in Functional Rooms through Standing Wave Ratio Adonis Cabigon1‚ Alaiza Tangaha2 Department of Physics‚ University of San Carlos‚ Nasipit‚ Talamban‚ Cebu City 6000 1adoniscc@yahoo.com 2mayalaiza92@yahoo.com Abstract In this paper‚ we present the measurement of the absorption coefficient α of MDF (Medium Density Fiberboard) and Fiber Cement through an improvised standing wave apparatus consist of an enclosed tube with
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HEAT GENERATED IN APPLIANCES Why do some appliances produce more heat than the others? Most appliances with high power rating are heating appliances.The heating appliances has a heating element like resistors. The resistorsconvert electrical energy into light and thermal energy . It depends on the resistance of material if how much heat can be produced from electricity. Those devices who produced heat‚ the Nichrome wire is an element who is responsible for heating . when we say nichrome
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(i) and (ii) below: Budgeted labour hours 8500 Budgeted overheads £148 750 Actual labour hours 7928 Actual overheads £146 200 (i) Based on the data given above‚ what is the labour hour overhead absorption rate? A £17.50 per hour B £17.20 per hour C £18.44 per hour D £18.76 per hour (ii) Based on the data given above‚ what is the amount of overhead under/over-absorbed? A £2550 under-absorbed B £2529 over-absorbed C
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physics and chemistry‚ heat is energy transferred from one body to another by thermal interactions. The transfer of energy can occur in a variety of ways‚ among them conduction‚radiation‚ and convection. The SI unit of heat is the joule. Heat can be measured by calorimeter‚ or determined indirectly by calculations based on other quantities‚ relying for instance on the first law of thermodynamics. In calorimeter‚ the concepts of latent heat and of sensible heat are used. Latent heat produces changes of
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Do Colours Attract Heat? Aim: To paint coke cans different colors and test which colours attract the most heat. Research: After researching colours on the internet‚ I found that darker colours‚ like black or purple‚ should attract more heat than lighter colours such as pink or yellow. Hypothesis: I predict that the darker colors‚ will attract more heat than the lighter colours because they will absorb the heat‚ instead of reflecting it. Equipment / Materials: I will need the following:
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