A sample of solid graphite is heated with an electrical coil. If 155 J is added to a 15.0-gram sample initially at 20.7°C, calculate the final temperature of the .graphiteAnswer:°C. A sample of solid silicon is heated with an electrical coil. If 94.5 J is added to a 11.3-gramsample and the final temperature is 36.2°C, calculate the initial temperature of the silicon.Answer:°C.

Given : for graphite : mass = 15 g Heat = 155 J , initial temperature= 20.7°C Tip : q=mc∆T

Answered: A sample of solid graphite is heated…

A sample of solid graphite is heated with an electrical coil. If 155 J is added to a 15.0- gram sample initially at 20.7°C, calculate the final temperature of the .graphite Answer: °C.

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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Question

A sample of solid graphite is heated with an electrical coil. If 155 J is added to a 15.0-
gram sample initially at 20.7°C, calculate the final temperature of the .graphite
Answer:
°C.

A sample of solid silicon is heated with an electrical coil. If 94.5 J is added to a 11.3-gram
sample and the final temperature is 36.2°C, calculate the initial temperature of the silicon.
Answer:
°C.

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