Measurements show that the enthalpy of a mixture of gaseous reactants increases by 243.kJ during a certain chemical reaction, wh
1 answer:
Answer: The change of energy of the gas mixture during the reaction in 69 kJ
Explanation:
According to first law of thermodynamics:
=Change in internal energy
q = heat absorbed or released
w = work done or by the system
w = work done on the system
w = -174 kJ
q = +243 kJ {Heat has increased so heat is absorbed}
Thus the change of energy of the gas mixture during the reaction in kJ is 69
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