The lowest temperature at which movement of the specimen is observed is recorded as the pour point. INTRODUCTION In the cloud point experiment‚ waxes will appear and thickens the oil and clogs fuel filter and injectors in engines. The wax also accumulates on the cold surfaces and forms an emulsion with water. The appearances of cloud point determine the first cloud of wax crystals in a liquid when it is cooled. Whereas‚ pour point experiment is to determine the minimum temperature of the oil
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the flame of rotary kiln must be stable‚ in order to avoid the emergence of the steep peak temperature‚ and the good stability of rotary kiln is formed in the long flame. So it will protect the period of refractory. In order to make the effect better ‚we should adopt measures as follows: When the ignition‚ rotary kilns occur blasting because of low temperature‚ the reason is a low ignition temperature in the kiln‚ with coal combustion is bad‚ when the coal falls to a certain extent ‚burning fierce
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BACKGROUND OF THE STUDY Many people seek `for ways to cool themselves or cool up an area where they stay in. Refrigerators and freezers were to cool down our beverages and to freeze our ice cream and fruit salad. In order to maintain the cold temperature of beverages‚ we always bring a pack of ice and put it to the cooler which is made from a styrofoam or hard plastic. Air conditioning units make our houses cool and comfortable for our family‚ friends and your love ones. They are also use in other
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INTRODUCTION Worldwide postharvest fruit and vegetables losses are as high as 30 to 40% and even much higher in some developing countries. Reducing postharvest losses is very important; ensuring that sufficient food‚ both in quantity and in quality is available to every inhabitant in our planet. Proper postharvest processing and handling is an important part of modern agricultural production. Postharvest processes include the integrated functions of harvesting‚ cleaning‚ grading‚ cooling‚ storing
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to what temperature must the rod be heated? Increase in L = a*(T-To)L = 10cm = 0.1m 11.8*10^-6/oC(T-0)1000 = 0.1 0.0118T = 0.1 T = 8.47o C Required Resources Scientific calculator Submission Requirements Submit your work on a separate sheet of paper to your instructor at the end of the exercise. Question 1 of 1: Temperature and Heat Complete the following problems and exercises using complete sentences and showing all work where appropriate. 1. The temperature of the Sun’s
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true‚ LetηX>ηR If the reversible engine also receives heat Q1 from the source‚ it will do work WR. Let us convert that heat engine to a heat pump‚ then we have‚ that R receives Q1‐WR & receives WR from the surroundings & rejects Q1 heat to high temperature reservoir. Coupling it to heat engine the net work done now becomes; (Q1‐WR) – (Q1‐WX) =WX‐WR Thus of corollary 2 is true‚ then we have we have that following condition is also possible. X R Q1 Q1 WX‐WR Q1‐WX Corollary 3: All reversible heat
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factors within in the body are water control‚ temperature regulation and any blood condition. Homeostasis is a very important factor to life. Homeostasis is a dynamic process of sending and receiving information to obtain regulation within a constantly changing environment. Why the body needs to maintain a stable internal environment. The body must maintain a stable internal environment. Body temperature should be constant at 37 degrees. If our temperature is not kept constant then our life processes
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measurement of Vapor Liquid Equilibrium for the Ethanol – Water system to verify the literature data. For this the Ethanol – Water system was heated to a certain temperature which is called the equilibrium temperature at atmospheric pressure and equilibrium temperature and compositions of vapor and liquid were measured. At the equilibrium temperature the samples of both vapor and liquid were taken in two different test-tube and the refractive index of both the samples were measured by a Refractometer. Then
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(which should be in a cup) underneath the lamp. 3. Place a thermometer in the sand and in the water. 4. Record the temperature before turning on the lamp. 5. Ask an adult to turn on the lamp. Record each temperature every two minutes. Do not take the thermometer out of the sand or water. 6. After ten minutes had passed‚ turn off the lamp. Now‚ record the temperature every two minutes until ten minutes had passed. 7. Analyze your data and make a conclusion. Time (minutes) Sand (˚C)
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(g±0.002g) Initial Temperature (°C±0.25°C) Final Temperature (°C±0.25°C) Trial 1 45.032 3.012 25.00 29.50 Trial 2 45.037 3.009 22.00 26.50 Reaction 2: Solution of MgSO4*7H2O Trial 1 41.897 6.167 25.00 23.00 Trial 2 41.890 6.168 25.00 23.00 Table 4: Raw Quantitative Data from the Experiment Reaction 1: Solution of MgSO4 Before MgSO4 is a white solid powder with a mat texture Distilled water is a clear‚ transparent liquid During MgSO4 powder slowly dissolve in water‚ the temperature increase during
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