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Summary of Contents for Pasco Scientific TD-8572
- Page 1 Instruction Manual and Experiment Guide for the PASCO scientific Model TD-8572 HEAT ENGINE/ GAS LAW APPARATUS better ® 10101 Foothills Blvd. • Roseville, CA 95678-9011 USA ways to Phone (916) 786-3800 • FAX (916) 786-8905 • web: www.pasco.com teach science...
- Page 2 The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and mainte- nance (servicing) instructions in the literature accompanying the appliance.
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Page 3: Table Of Contents
012-06014C Heat Engine/Gas Laws Apparatus Table of Contents Section Page Copyright, Warranty, and Equipment Return ............ii Introduction ...................... 1 Equipment ......................1 Experiments 1) Operation of a Heat Engine ................ 3 2) Charles’ Law ..................... 5 3) Boyle’s Law ....................7 4) Combined Gas Law (Gay-Lussac’s) ............ -
Page 4: Copyright, Warranty, And Equipment Return
AUTHORIZATION FROM PASCO. Limited Warranty When returning equipment for repair, the units must PASCO scientific warrants the product to be free from be packed properly. Carriers will not accept respon- defects in materials and workmanship for a period of one sibility for damage caused by improper packing. -
Page 5: Introduction
012-06014C Heat Engine/Gas Law Apparatus Introduction The PASCO TD-8572 Heat Engine/Gas Law Apparatus is The heart of this apparatus is a nearly friction-free piston/ used for quantitative experiments involving the Ideal Gas cylinder system. The graphite piston fits snugly into a... - Page 6 Heat Engine/Gas Law Apparatus 012-06014C Notes: ®...
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Page 7: Experiments 1) Operation Of A Heat Engine
Set a mass of 100 to 200 g on the mass platform. Note: Use a maximum mass of 200 grams in HEAT ENGINE GAS LAW APPARATUS TD-8572 Piston Dia.: Piston&Platform 32.5mm±0.1 Mass: 35.0g±0.6 the experiment. A larger mass will cause the CAUTION: Max. - Page 8 Heat Engine/Gas Law Apparatus 012-06014C Note: For a more detailed, quantitative investigation of the operation of a heat engine, see Experiment 5 (page 11). ®...
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Page 9: Charles' Law
012-06014C Heat Engine/Gas Law Apparatus Experiment 2: Charles’ Law Equipment Required: • Heat Engine/Gas Law Apparatus • container of hot water • ice • thermometer Theory Charles’ law states that at a constant pressure, the volume of a fixed mass or quantity of gas varies directly with the absolute temperature: V = cT (at constant P and where T is expressed in degrees Kelvin) - Page 10 Heat Engine/Gas Law Apparatus 012-06014C Notes: ®...
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Page 11: Boyle's Law
(Consult the Science Workshop User’s from the unused port. HEAT ENGINE GAS LAW APPARATUS Guide, “Keyboard Sampling,” for details.) TD-8572 Piston Dia.: Piston&Platform 32.5mm±0.1 Mass: 35.0g±0.6 CAUTION: Max. Pres.: 345 kPa. Use Gases Only... - Page 12 Heat Engine/Gas Law Apparatus 012-06014C ®...
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Page 13: Combined Gas Law (Gay-Lussac's)
012-06014C Heat Engine/Gas Law Apparatus Experiment 4: Combined Gas Law (Gay-Lussac’s ) Equipment Required: • Pressure Sensor (CI-6532) • hot plate • Science Workshop computer interface* • Pyrex beaker with water • ice • Temperature Sensor (CI-6505) *For details on setting up and operating the Pressure Sensor and the Temperature Sensor with Science Workshop, please consult the instruction sheets for the Pressure Sensor and the Tempera- ture Sensor and the User’s Guide for Science Workshop. - Page 14 Heat Engine/Gas Law Apparatus 012-06014C Procedure Record the temperature and pressure as the water heats. Display a graph of temperature versus pressure in Science Workshop. ®...
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Page 15: The Mass Lifter Heat Engine
012-06014C Heat Engine/Gas Law Apparatus Experiment 5: The Mass Lifter Heat Engine The Heat Engine/Gas Law Apparatus is ideal for use in the calculus-based experiment 18.10 of the Workshop Physics Activity Guide. Following is a slightly modified reprint of the experiment: Equipment Required: •... - Page 16 A diagram of this mass lifter is shown in Figure 5.2. Close the shut-off valve on the tubing from the unused port. HEAT ENGINE GAS LAW APPARATUS TD-8572 Piston Dia.: Piston&Platform 32.5mm±0.1 Mass: 35.0g±0.6 CAUTION: Max. Pres.: 345 kPa.
- Page 17 012-06014C Heat Engine/Gas Law Apparatus Point A Point B Point C Point D Cold Cold Figure 5.3. A simplified diagram of the mass lifter heat engine at different stages of its cycle. 5.1 Activity: Description of the Engine Cycle a. Predicted transition a b: Close the system to outside air but leave the can in the cold reservoir.
- Page 18 Heat Engine/Gas Law Apparatus 012-06014C f. Observed transition c d: Remove the added mass and describe what actually happens. Is this what you predicted? g. Predicted transition d a: What do you predict will happen if you now place the can back in the cold reservoir? Explain the reasons for your prediction.
- Page 19 012-06014C Heat Engine/Gas Law Apparatus 5.3 Activity: Determining Volume and Pressure a. Take any measurements needed to determine the volume and pressure of air in the system at all four points in the engine cycle. You should do this rapidly to avoid air leakages around the piston and summarize the measurements with units in the space below.
- Page 20 Heat Engine/Gas Law Apparatus 012-06014C f. Remove the added mass and make any measurements needed to calculate the volume and pressure of air in the system at point d in the cycle. Show your equations and calculations in the space below and summarize your results with units. g.
- Page 21 012-06014C Heat Engine/Gas Law Apparatus b. On the graph in part a, label each of the points on the cycle (a, b, c, and d). Indicate on the graph which of the transitions (a b, b c, etc.) are adiabatic and which are isobaric. Next you need to find a way to determine the area enclosed by the P- V diagram.
- Page 22 Heat Engine/Gas Law Apparatus 012-06014C b. What is the equation you need to use to calculate the useful mechanical work done in lifting the mass from one level to another? c. Use the result for the height that the mass is lifted in the power stroke of the engine to calculate the useful mechanical work performed by the heat engine.
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Page 23: Technical Support
Technical Support Feedback Contacting Technical Support If you have any comments about the product or manual, Before you call the PASCO Technical Support staff, it please let us know. If you have any suggestions on would be helpful to prepare the following information: alternate experiments or find a problem in the manual, If your problem is with the PASCO apparatus, note: please tell us.
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