A gas is heated by adding 30. kJ of heat to the gas. As it heats, it also expands from 30. L to 50. L, and the gas performs 2 kJ of work on the external environment during the expansion. What is the change in internal energy (ΔE) of the gas?
A gas is heated by adding 30. kJ of heat to the gas. As it heats, it also expands from 30. L to 50. L, and the gas performs 2 kJ of work on the external environment during the expansion. What is the change in internal energy (ΔE) of the gas?
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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A gas is heated by adding 30. kJ of heat to the gas. As it heats, it also expands from 30. L to 50. L, and the gas performs 2 kJ of work on the external environment during the expansion. What is the change in internal energy (ΔE) of the gas?
Expert Solution
Step 1:- the values given in the question
• The values provided in the question are:-
i) Quantity of heat energy absorbed by the gas, Q = 30 kJ
>> The positive sign shows that heat is transferred from the surroundings to the system (i.e. gas)
ii) Quantity of work done by the gas, W = - 2 kJ
>> The negative sign shows that work is done by the system (i.e. gas) on surroundings (i.e. environment)
• We need to calculate the change in internal energy ,ΔE of the gas.
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