A system does 2.00 x 10° ) of work while 6.20 x 10 ) of heat transfer occurs to the environment. What is the change in internal energy (in 3) of the system assuming no other changes (such as in temperature or by the addition of fuel)? (Include the sign of the value in your answer.)
A system does 2.00 x 10° ) of work while 6.20 x 10 ) of heat transfer occurs to the environment. What is the change in internal energy (in 3) of the system assuming no other changes (such as in temperature or by the addition of fuel)? (Include the sign of the value in your answer.)
Chapter3: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2CQ: Is it possible to determine whether a change in internal energy is caused by heat transferred, by...
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Transcribed Image Text:A system does 2.00 x 10° J of work while 6.20 x 10° J of heat transfer occurs to the environment. What is the change in internal energy (in J) of the system assuming no other changes (such as in temperature or by the addition of fuel)? (Include the sign of the value in
your answer.)
Expert Solution
Step 1
Given :
Work done by the system (W) = 2 x 108 J
Heat transfer to the environment (Q) = -6.2 x 108 J
Heat transfer is negative because it is occurring to the environment.
Step 2
From first law of thermodynamics :
∆U = Q - W
∆U = -6.2 x 108 - 2 x 108
∆U = -8.2 x 108 J -> Answer
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