The temperature of a reaction was monitored with an thermometer that is reported to have precision of 20.2 K (uniform distribution). If we used this thermometer to monitor the temperature change in a particular exothermic reaction, what is expanded uncertainty (use coverage factor k = 2) in the net temperature change for the following measurements: Temperature before reaction starts = 296.2 K Temperature after reaction is finished = 305.6 K Net temperature change = 9.4 K. Expanded uncertainty at the 95% confidence interval level (k = 2) = ? (include unit!) Answer: 0.3K

The temperature of a reaction was monitored with an thermometer that is reported to have precision of 20.2 K (uniform distribution). If we used this thermometer to monitor the temperature change in a particular exothermic reaction, what is expanded uncertainty (use coverage factor k = 2) in the net temperature change for the following measurements: Temperature before reaction starts = 296.2 K Temperature after reaction is finished = 305.6 K Net temperature change = 9.4 K. Expanded uncertainty at the 95% confidence interval level (k = 2) = ? (include unit!) Answer: 0.3K

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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M) 1req Use the References to access important values if needed for this question. Expressing amounts of energy in different energy units is necessary to solve many chemistry problems. For practice, complete the following table. The Jouie (1) is the SI unit of energy. 1 calorie (cal) = 4.184 J J 545 Submit Answer cal 110. kJ 0.706 Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support MacBook Air Previous Next Save and Exit