Using the following equation for the combustion of octane, calculate the heat associated with the combustion of 100.0 g of octane assuming complete combustion. The molar mass of octane is 114.33 g/mole. The molar mass of oxygen is 31.9988 g/mole.

Using the following equation for the combustion of octane, calculate the heat associated with the combustion of 100.0 g of octane assuming complete combustion. The molar mass of octane is 114.33 g/mole. The molar mass of oxygen is 31.9988 g/mole.

 ΔH°rxn =-11018 kJ

A) -535.4 kJ

B) -4819 kJ

C) -602.3 kJ

D) -385.5 kJ

E) -11018 kJ

 B) -4819 kJ

Explanation:

To calculate the moles :

 ΔH°rxn =-11018 kJ

According to stoichiometry :

2 moles of octane release = 11018 kJ

Thus 0.8747 moles of octane will release =

Heat released is given as negative sign.

Thus the heat associated with the combustion of 100.0 g of octane assuming complete combustion is -4819 kJ

h let me think

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation: