Specific Heat Capacities Of Metal

Specific Heat Capacities of Metal Purpose: To measure the specialized warmness capacities of aluminum, steel and brass. Theory: The amount of wake that is inerrant to transmit the temperature of an bearing glass is proportional to the luck of the object the the temperature change of the object: Q=cmT Where Q=amount of heat c= particularized heat capacity of the material m= voltaic impede of the object T= temperature change of the object Calorie is the building block of standard of heat and is defined as the amount of heat required to raise the temperature of one gram of piss from 14.5 °C to 15.5 °C. Then, the piddle has a specific heat of 1 cal/g°C. So: Cw=Q/mT=1cal/(1g)(1°C) The specific heat can be run aground by measuring the temperature change of a given mass of material produced by a total of heat. This is done by a procedure known as the mode of mixture. This method involves an object with a mass (m) that is heated up by an initial tem perature (T1) and hence laid in water. Water has a mass of (Mw) and a temperature of (Tw). The mixture lead come to an counterpoise which leaves us with a final temperature of (T2). So: mc(T1-T2)=MwCw(T2-Tw) Cw and c are the specific heats of the the water and material. Procedure: We had trine different admixtures (aluminum, steel and brass) for this lab.

We counterbalance boiled speed of light0g of water in a beaker on the gamy plate and then submerged the metal object into the heated water. subsequently allowing magazine for the metal to absorb the heat we upstage the object and placed it in 100g of room temperature water in plastic cup. After shaking the cup gently to con trol that the mixture reached the equilibriu! m temperature quickly, we measured the final temperature to get the T2 value. We repeat these steps tierce times for each individual metal object. Results: Data rigid 1 aluminumm(g)T1 (°C)Mw (g)Tw(°C) T2(°C)c(cal/g°C) 126.510010023.027.207 226.5.179 326.1.158 steelm(g)T1 (°C)Mw (g)Tw(°C) T2(°C)c(cal/g°C)...If you want to get a full essay, order it on our website: OrderEssay.net

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