(Solved): phys lab - Specific heat capacity water water Sample stage Lab 3 - Specific heat capacity Objectiv ...

phys lab - Specific heat capacity

water water Sample stage Lab 3 - Specific heat capacity Objective Experimentals de termine the specific heat capacity of a sample analog of metal thermometer Sample Experimental method Weigh a metal sample t room temperature be 4184 water in the calorimeter Take temperature of room- T water calorimeter 5/96 kg Heat metal sample to 2100°C I burner Stage 2 Quickly transfer heated metal sample to calorimeter dose lid i digital thermometer inserted & wait for the system to come to equilibrium Data and Analysis for Lab 3 mx = mass of sample, cx = specific heat capacity of sample, Tx = initial temperature of sample 7 Bunsen mw = mass of water, Cw = specific heat capacity of water, T = initial temperature of water T+ = final temperature of the combined water/sample system If an experimental variable is preceded by a '8' then we are talking about the experimental error in that experimental variable, e.g. Smx = uncertainty in the mass of the sample. From m.c.(T.-TX) + mwe(Tr-TW) = 0, we get Cx = -[ mcwTp-TW)]/(m cx (T-TX)]. We're going to absorb the minus sign into the (T-Tx) term and call (TX - Tt) the absolute value of the change in temperature of the sample, IATxl. Also, (Tr-TW) = ATW. Then, Cx = (m.C. ATW)/(mx/ATXI) We will also want to report the error in Cy. This is given by 6cx = C V{(5mx/mx)2 + (m/m)2 + [6(|ATxD)/(ATXD)] + [6(ATW)/(TW)]}} You'll report the final experimental result as Cx + 6Cx. The experimental data are: mx + 6mx = 53.6 g +0.1 g my om = 152.8 g 0.2g TX + 8TX = 100.0 °C + 0.5 °C TWIST = 19.2 °C 0.1°C Ti + ST1 = 21.4 °C + 0.1 °C |AT I +61|ATXI) = 78.6 °C + 0.5 °C ATW + 8(T) = 2.2 °C +0.2 °C What is the material based on the experimental cx + 6c ? Which term in the error analysis contributes the most to the uncertainty in C? Does this make sense based on all of the experimental data taken?