The enthalpy of combustion for octane (C3H13()), a key component of gasoline, is –5074 kJ/mol. The reaction equation is: C3H18(1) + 12.502(g) → 8C02(g) + 9H2O(g).
What is the AHq for this reaction?

16CO2(g) + 18H2O(g) → 2C3H18(1) + 2502(g)
kJ

A.

Iam pretty sure that the answer is d

When china's civil war resumed, the nationalists held an advantage because the nationalist had more soldiers  than the communist.

The internal energy of the system we can term it as total potential energy and kinetic energy. energy flows out of the surrounding from the system then we can say that the internal energy of the final state is lower than its initials. the sign of  δesystem is negative.δesystem = efinal - einitial=-ve  efinal  ∠einitial.