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Enthalpy Essay Topics & Paper Examples

Thermochemistry: Solid Sodium Hydroxide

Hydrochloric acid and sodium hydroxide are corrosive. Avoid direct contact. If any touches your skin, wash it off immediately. Solid sodium hydroxide is especially dangerous because it absorbs moisture rapidly from the air, forming an extremely corrosive liquid. Avoid spilling this solid, and if a spill occurs, clean it up immediately. Be sure to close the lids of bottles of sodium hydroxide securely, immediately after using. Dispose of solutions according to your teacher’s instructions. A lab coat or apron is strongly recommended. Procedure: Part One: The Dissolving of Solid Sodium Hydroxide in Water 1. Read through the procedure and look carefully at the data tables provided for you at the end of this lab. 2. Put 200 mL of cool…

The effects of subcooling and superheating in refrigeration system

Some factors that affect the Coefficient of Performance of the refrigeration are; Sub Cooling of liquids Superheating of Vapor (May be constant, increase or decrease) Change in suction pressure Change in discharge pressure Effect of volumetric efficiency of Compressor [2]. Methodology: Firstly, the mass flow rate of the refrigeration cycle was determined in order to get steady values of results. Secondly, the values of temperature were recorded for the different points corresponding to the P-h chart. Once the temperature was found, it is plotted in the P-h chart to determine the values of enthalpy for the respective points. Compared the ideal values of COP with the actual values and note the significance. Apparatus: Discussion: It was noted from the above…