Specific Heat Lab - Specific Heat Lab Physics 103A Mohammad Ihsan Julian Victoria Patrick Rojek Nirav Patel Professor Huang Objective The goals of this

Specific Heat Lab - Specific Heat Lab Physics 103A Mohammad...

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Specific Heat Lab Physics 103A Mohammad Ihsan, Julian Victoria, Patrick Rojek, Nirav Patel Professor Huang 2/22/17
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Objective The goals of this lab were to measure the specific heat of a metal specimen using calorimeter and to come to a deeper understanding of the principle of conservation of energy as it applies to thermal energy. Introduction It is found that for large ranges of temperature, if a material doesn’t change state, the heat added to a body is directly proportional to the change in the body’s temperature and to the mass of the body. This as a result yields the equation: ∆Q = cm ∆T , where ∆Q (in cal) is the heat added to the body, m (g) is the mass of the body, ∆T ( ) is the change in temperature, and c (in cal/g) is the constant of proportionality called specific heat, which depends on the material of the body. When two bodies in an isolated system, initially at different temperatures, are placed in intimate contact with each other, in time they will come to equilibrium at some common intermediate temperature. Due to the law of conservation of energy, energy is not attained nor is it lost in the process. Therefore an equation can be derived from this which is: Mc ( T m T F ) = M W c W ( T F T c )+ M c c c ( T F T c ) . These were the two essential equations that we needed for this lab. Experimental Procedure The first thing we did was weigh the aluminum specimen (M), the inner calorimeter cup and stirrer (M c ). We then filled the steam generator with water and placed the specimen in the steam jacket and heat the specimen to steam temperature. While the water was being heated up, we
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filled up inner calorimeter cup with water to about ½ full so it will cover the specimen. To cool this water down to below room temperature, we added a little ice. After that we weighed the
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