Physics
Physics, 31.05.2021 01:00, tamaliablanchard

Two experimental runs are performed to determine the calorimetric properties of an alcohol that has a melting point of āˆ’10ā„ƒ. In the first run, a 200-g cube of frozen alcohol, at the melting point, is added to 300 g of water at 20ā„ƒ in a styrofoam container. When thermal equilibrium is reached, the alcohol-water solution is at a temperature of 5.0ā„ƒ. In the second run, an identical cube of alcohol is added to 500 g of water at 20ā„ƒ and the temperature at thermal equilibrium is 10ā„ƒ. The specific heat of water is 4190 J/kgā‹…K. Assume that no heat is exchanged with the styrofoam container and with the surroundings. The specific heat of the alcohol is closest to a)2100j/kg. K b)1700j/kg. K c)1900j/kg. K d)2500j/kg. K e)2300j/kg. K

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