EnergyComparisonFuels-2.pdf - Maddie Douglas Ron Paul ENV101 Lab#7-Energy Comparison Fuels Purpose ​The purpose of this lab is to understand how

# EnergyComparisonFuels-2.pdf - Maddie Douglas Ron Paul...

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Maddie Douglas Ron Paul ENV101 November 10, 2019 Lab #7 -Energy Comparison Fuels Purpose- The purpose of this lab is to understand how different fuel sources are created. This lab aims to assist in the understanding of calorimeter, and the process of measuring the heat released from different fuels. Hypothesis – The Wick will produce more calories per gram than the candle. Data Table 1. Mass and Density of Distilled Water Mass of 10.0 mL of distilled water (g) Density of water (g/mL) 9g 9g/10L = .9kg/m^3 Data Table 2. Calorimetric Data. Fuel Source: Initial mass of fuel (g) Final mass of fuel (g) Initial temperature (°C) Final temperature (°C) Fuel canister: (diethylene glycol) 186.4g 180.1g 18(C) 85(C) Tea candle: (paraffin) 8.7g 8g 20(C) 37(C) Data Table 3. Calories Released per Gram of Fuel. Fuel Type Δ T (°C) Calories absorbed by water (cal) Grams of fuel consumed (g) Calories/gra m
Fuel canister: (diethylene glycol) 85-18= 67 12,060cal 6.3g 1,914.29cal/g Tea candle: (paraffin) 37-20= 17 3,600cal .7g 542.86cal/g Analysis Questions A. Which fuel was more efficient (produced more calories per gram)? Explain your answer. The fuel that produced the most calories per gram was the tea candle. Glycol contains more oxygen in its substance than paraffin and therefore it combusts faster and with more energy than the tea candle which is made from petroleum. B. Explain the difference in the efficiencies of the fuels you tested based on the chemical structures of the fuels.

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