The net internal change of the internal energy of the gas can be determined by using the First Law of Thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system:
ΔU = Q - W
In this case, since the gas is outside the system, the work done by the gas is zero (W = 0). Therefore, the net internal change of the internal energy of the gas is equal to the heat added to the system:
ΔU = Q
Therefore, the net internal change of the internal energy of the volume of gas is 70 j.
70j of energy are given off by a volume of gas outside system. What is the net internal change of the internal energy of this volume of gas?
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