For the following processes, calculate the change in internal energy of the systemexpressed in kJ unit and determine whether the process is endothermic or exothermic:(a) A balloon is cooled by removing 0.655 kJ of heat. It shrinks on cooling, and theatmosphere does 382 J of work on the balloon. (b) A 100.0-g bar of gold (atomicweight of gold = 196.97 g/mol) is heated from 25 °C to 50 °C during which it absorbs%3D322 J of heat. Assume the volume of the gold bar remains constant.

According to first law of thermodynamics ∆U =q +w Where ∆U is change in internal energy,…

Answered: For the following processes, calculate…

For the following processes, calculate the change in internal energy of the system expressed in kJ unit and determine whether the process is endothermic or exothermic:

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

For the following processes, calculate the change in internal energy of the system
expressed in kJ unit and determine whether the process is endothermic or exothermic:
(a) A balloon is cooled by removing 0.655 kJ of heat. It shrinks on cooling, and the
atmosphere does 382 J of work on the balloon. (b) A 100.0-g bar of gold (atomic
weight of gold = 196.97 g/mol) is heated from 25 °C to 50 °C during which it absorbs
%3D
322 J of heat. Assume the volume of the gold bar remains constant.

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