Question
CHEMICAL energy is turned to HEAT energy by... the body a car's engine a fire [ALL of these]
Answer
4.6
(115 Votes)
Kelsey
Professional · Tutor for 6 years
Answer
[ALL of these]
Explanation
## Step 1: The problem is asking for examples of where chemical energy is converted into heat energy. This process occurs when a substance or system undergoes a chemical reaction which often involves the release or absorption of heat.## Step 2: Consider the options:1. The body: When we eat, our body absorbs nutrients which are stored in molecular bonds. When these bonds are broken down, it necessitates the release of chemical energy. Predominantly, this released energy is turned to heat during various bodily reactions or processes. 2. A car engine: A car's engine operates on combustion reactions which can be thought of as an example of exothermic reactions where chemical energy in the form of fuel is used to release heat and power the vehicle. 3. A fire: A fire can be thought of as a rapid, high-temperature oxidation of the combustible material in the presence of oxygen. This process which commonly known as combustion, rapidly releases energy stored in the form of heat and light.Thus, all the given options result in the conversion of chemical energy into heat energy.