Unit: 3 - energy from fuels

Question 1

What is an combustion?

Answer 1

In combustion, a substance reacts with oxygen releasing energy.

Question 2

what does alcohols and hydrocarbons produced when burned in a plentiful supply of oxygen?

Answer 2

Hydrocarbons and alcohols burn in a plentiful supply of oxygen to produce carbon dioxide and water.

Question 3

How can we estimate the complete combustion of hydrocarbons and alcohols?

Answer 3

Equations can be written for the complete combustion of hydrocarbons and alcohols

Question 4

True or False, Fuels burn releasing different quantities of energy

Answer 4

True!, Fuels burn releasing different quantities of energy.

Question 5

What is the equation for calculating the heat energy released?

Answer 5

The quantity of heat energy released can be determined experimentally and calculated using, Eh = cmΔT

Question 6

True or False, Calculations for heat can only involve water, and no other substances?

Answer 6

Calculations can involve heating substances other than water