Laboratory exercises to accompany Carhart and Chute's First principles of physics . mometer. Keep your note-book close athand, so as to record the temperatures as soon as read. Read alltemperatures to tenths of a degree. Measure with a graduate 200 of water into thedipper of the steam boiler. See that the boiler is abouthalf full of water and then light the burner beneath waiting for the water to heat, do Part (a). (a) Weigh the calorimeter empty and dry. Putshaved ice, or snow, into a graduate up to the 15 mark and then add waterto the 100 mark. Pourthe mixture into th
Laboratory exercises to accompany Carhart and Chute's First principles of physics . mometer. Keep your note-book close athand, so as to record the temperatures as soon as read. Read alltemperatures to tenths of a degree. Measure with a graduate 200 of water into thedipper of the steam boiler. See that the boiler is abouthalf full of water and then light the burner beneath waiting for the water to heat, do Part (a). (a) Weigh the calorimeter empty and dry. Putshaved ice, or snow, into a graduate up to the 15 mark and then add waterto the 100 mark. Pourthe mixture into the cal-orimeter and weigh the outside of the cal-orimeter wiped dry duringFig. 75. Ice Shaver. -, . ™ , the weighing. Place the calorimeter in a battery jar, filling the space between thetwo with cotton wool or other non-conducting the top of the calorimeter with a cardboard square,having a hole in the center, through which a thermometeris inserted. Measure 100 of water into an Erlenmeyer flaskfitted with a 1-hole rubber stopper, carrying a ther-. LAW OF HEAT EXCHANGE 207 mometer adjusted so that the bulb is near the bottom ofthe flask when the stopper is in place. Warm the water in the flask by dipping the flask into apail of hot water. A slight rotary motion given to theflask will insure uniform heating. The water is to beheated to as many degrees above the room temperature(which will be placed on the blackboard) as the tempera-ture of the water in the calorimeter is below the roomtemperature. Read and record promptly the temperaturesof the two masses of water. Then lift off the cardboard cover from the thermometerin the calorimeter. Pour the warm water from the flaskinto the calorimeter, letting it run down the thermometerwhich was used in the flask. For about half a minutestir the mixture of warm and cold water, using boththermometers with the bulbs held together. Read andrecord the average reading of the two thermometers. Touch the bulbs of t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectphysics, bookyear1913
