Physics
Physics, 28.10.2019 10:31, mochoa4

Does water expand more as the temperature drops even more below 0 deg? i am worried about the coolant in my rad. as the temp. is 40deg below.

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Physics, 01.07.2019 14:30, phowhim40
The temperature of a solution can change the solubility of a substance. the chart shows solubility of the same solute at different temperatures in water. w: temp- 40 | 100g water- 50 x: temp- 59 | 100g water- 200 y: temp- 55 | 100g water- 150 z: temp- 48 | 100g water- 80 based on the chart, which solution was at the optimal temperature to allow the greatest solubility? w x y z (also, i know the answer is not y)
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Physics, 23.07.2019 04:00, glocurlsprinces
Consider the coolant circuit in a standard automotive engine that produces a power output of 100 kw. the liquid coolant (which is usually a 50%-50% mixture of ethylene glycol and water) has a specific heat of 3.3 kj/kg-k. if the coolant inlet temperature is 70°c and heat transferred to the coolant at the maximum power operating condition is 28% of the power output, find the minimum mass flow rate of coolant required to keep the coolant exit temperature at or below 90°c.
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Physics, 30.08.2019 22:30, fyegirl12
Temperatures of gases inside the combustion chamber of a four-stroke automobile engine can reach up to 1000℃. to remove this enormous amount of heat, the engine utilizes a closed liquid- cooled system which relies on conduction to transfer heat from the engine block into the liquid and then into the atmosphere by flowing coolant around the outside surface of each cylinder. assume you have a 4-cylinder engine, and each cylinder has a diameter of 9.50 cm and height of 10.7 cm and is 2.66 mm thick. the temperature on the inside of the cylinders is 191.8°c and the temperature outside, where the coolant passes, is 132.8℃. the temperature of the incoming liquid (a mixture of water and antifreeze) is maintained at 97.1°c what volume flow rate of coolant would be required to cool this engine? assume that the coolant reaches thermal equilibrium with the outer cylinder walls before exiting the engine. the specific heat of the coolant is 3.75 j/g. °c and its density is 1.070 x103 kg/m3. the cylinder walls have thermal conductivity of 1.10 x 102 w/m °c. assume that no heat passes through the ends of the cylinders number cm -5600
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