# As a result of the work performed by external forces and heat transfer, the internal energy of the system increased by 200 J.

As a result of the work performed by external forces and heat transfer, the internal energy of the system increased by 200 J. What amount of heat was transferred to the thermodynamic system if the external forces performed the work of 50 J?

To find the amount of heat transferred to the indicated thermodynamic system, we use the formula: Q = ΔU – A.

Variables: ΔU – increase in the internal energy of the specified system (ΔU = 200 J); A – work of external forces (A = 50 J).

Calculation: Q = ΔU – A = 200 – 50 = 150 J.

Answer: The amount of heat transferred to the indicated thermodynamic system is 150 J.

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