An amount of heat equal to 2000 J was transferred to the thermodynamic system
| March 7, 2021 | education
An amount of heat equal to 2000 J was transferred to the thermodynamic system, and work was done on it by 500 J. Determine the change in its internal energy of this system.
To determine the desired change in the internal energy of the selected thermodynamic system, we use the formula: U = Q + A.
Variables: Q – heat (Q = 2000 J> 0, since heat was transferred to the system); A – work (A = 500 J> 0, since the work was performed on the selected system).
Calculation: U = Q + A = 2000 + 500 = 2500 J.
Answer: the internal energy of the selected thermodynamic system has changed (increased) by 2500 J.
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