Lab 3 - Thermal Stations

Lab 3 - Thermal Stations - Thermal Stations Lab There will...

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Thermal Stations Lab There will be different stations set up, with each involving a concept listed below: 1. Heat Engine 2. Determining a Thermodynamic Constant, γ 3. Thermal Radiation System (using the PASCO apparatus) Perform only experiment 3. 4. Thermal Expansion System (using the PASCO apparatus, follow my instructions, and refer to PASCO’s Lab Manual when referenced in my instructions and for figures) You will have approximately 30 – 60 minutes to spend at each station throughout the next several weeks of lab. Ask your instructor for details.
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Station #1: Heat Engine Purpose Using the Heat Engine/Gas Law apparatus, explore qualitatively how a heat engine operates. Theory By transferring thermal energy or heat to a system, mechanical work can be performed. The Heat Engine uses hot and cold water sources to cause air expansion to occur, allowing the engine to perform work. Equipment Heat Engine/Gas Law apparatus - Piston/platform - Small aluminum container with 1 holed stopper - Plastic tubing with T-joint and two one way valves Lab jack 100g brass weight 2 1000 or 800 ml Pyrex containers Hot plate Stand with thermometer holder Thermometer Ice and hot water Procedure 1. Using the one-holed stopper, connect the tubing from the stopper to the T-joint, to the one way valve (pointed away from the stopper) into one of the tubing connections in the engine. On the other connection on the T-joint, connect a tube with a one-way valve pointed into the T-joing. (The tubing should already be connected for you, however, you may need to connect the tubing to a one-holed stopper. 2. On the engine, there are two tube connections, use the clamp, located directly behind the connector, to shut off the open connector. Be sure to unclamp the tube when you are finished, otherwise the tube will be deformed.
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