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Sagot :
The change in internal energy in KJ 25.48483.
The internal energy of a thermodynamic system is the total energy contained in it.
Internal energy, in thermodynamics, is the property or state function that defines the energy of matter in the absence of capillary action or external electric, magnetic, or other fields.
Internal energy is the microscopic energy contained in the matter given by the random and disordered kinetic energy of the molecules. It also includes the potential energy between these molecules and the nuclear energy contained in the atoms of these molecules.
Change in internal energy = q + w
Given that, q = 1700 J
w = - P ( V₂ - V₁)
w = - 0.70 ( 4.6 - 72.9L)
w =243.738 atm. L
w = 243.738 atm. L * 101.325 J / 1 atm.L
w = 23784.82 J
Therefore, Change in internal energy = 1700 + 23784.82 J
= 25484.83 J
= 25.48483. kJ
Learn more about internal energy here:-https://brainly.com/question/15735187
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