Physics II Lab 2 Report

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School

California Baptist University *

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Course

203

Subject

Chemistry

Date

Feb 20, 2024

Type

docx

Pages

4

Uploaded by GrandGoose2704

Report
Timothy Allec, Bryan Luna 2/01/2024 PHY203-A Lab 2: Calorimetry Purpose: This lab exemplifies the thermodynamic process of heat transfer and aims to measure the specific heat of an unknown metal using calorimetry. Through the calibration of the calorimeter's heat capacity in Part 1 and the subsequent measurement of the specific heat of the unknown metal in Part 2, students engage in hands-on exploration, reinforcing their comprehension of heat transfer principles, conservation of energy, and specific heat concepts. Part 1 Results: The lab results illustrate heat transfer between heated metal and room-temperature water. Utilizing prescribed equations enables accurate calculations, affirmed by trial 1. In trial 2, these equations and measurements ascertain the specific heat of an unknown metal. Key calculations involve = ∆ for heat transfer and ∆ = ∆ + ∆ + ∆ = 0, 𝑄 𝑀𝑐 𝑇 𝐸 𝐸𝑚𝑒𝑡𝑎𝑙 𝐸𝑤𝑎𝑡𝑒𝑟 𝐸𝑐𝑎𝑙𝑜𝑟𝑖𝑚𝑒𝑡𝑒𝑟 facilitating energy conservation analysis. Data exhibits a consistent temperature change curve over time, with rapid drops and recoveries attributed to gentle container spinning, a human- induced error to expedite the lab. Comparison between trial 1 (brass) and trial 2 (unknown metal) temperatures suggests consistency. One potential experimental error is insufficient boiling water exposure for the metal. Data: Copper Mass 80g Styrofoam Container Mass 19g Styrofoam Water Mass 126g Styrofoam Water Initial Temp 21 C o Beaker Boiling Point 95 C o T i 21 C o T f 24.3 C o
Pascal Graph shows T f achieves thermal equilibrium at 24.6 C o for part 1: Part 2 Results: Aluminum Mass 80g Styrofoam Container Mass 19g Styrofoam Water Mass 129g Styrofoam Water Initial Temp 21 C o Beaker Boiling Point 95 C o T i 21 C o T f 24.6 C o
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