FAQ

How can we calculate the energy released by a burning candle?

How can we calculate the energy released by a burning candle?

Divide the the thermal energy created by mass (in grams) of the candle that were burned to calculate the heat of combustion of paraffin wax expressed in J/g.

How do you measure the heat of a candle?

Heat the water, stirring it gently, until it reaches about 45oC. Carefully blow out the candle flame. Continue to stir the water, while watching the thermometer reading, until the highest temperature is reached. Record the highest temperature reached to the nearest 0.1 oC.

What is the energy transfer in a burning candle?

READ ALSO:   Which Faang company pays the most?

when a candle burns the energy transformation that takes place goes thus: it transforms chemical energy(wax)to heat and light energy it transforms chemical energy to heat energy which is later transformed to light Potential Energy is converted to Kinetic energy.

What happens to a burning candle covered with glass?

The burning candle produces carbon dioxide and water in the form of water vapor. The glass becomes foggy due to this water. The flame goes out, of course, from a lack of enough oxygen in the glass. If the air in the glass cools down and its volume decreases, a negative pressure is created inside the glass.

Can a candle burn in carbon dioxide?

All the light a candle makes comes from a chemical reaction known as combustion in which the wax (made from carbon-based chemicals typically derived from petroleum) reacts with oxygen in the air to make a colorless gas called carbon dioxide. Candles don’t burn all by themselves.

What energy transformation occurred from the flame of the candle to the spoon with water?

The energy transforms from chemical energy to heat and light energy. Because when the candle burns a chemical reaction occurs, and produces heat and light. Highly active question.

READ ALSO:   How much should I pay a contractor up front?

What are the two common values used as the specific heat of water?

Heat Capacity and Specific Heat

Substance Specific Heat (J/g°C)
Water (s) 2.06
Water (g) 1.87
Ammonia (g) 2.09
Ethanol (l) 2.44

Why is specific heat of water so high?

Water’s high heat capacity is a property caused by hydrogen bonding among water molecules. When the temperature of water decreases, the hydrogen bonds are formed and release a considerable amount of energy. Water has the highest specific heat capacity of any liquid.

What can you learn from this simple burning candle rising water experiment?

Your kids will be amazed by this simple burning candle rising water science experiment. This rising water experiment will teach your kids the effect of air pressure. This burning candle in water is one of those science experiments that appear like magic.

What happens to the volume of the air when a candle burns?

For n=1 we balance the equation as follows: Because twice as much oxygen is burned than carbon dioxide released, the air volume decreases. The physical aspect: the candle heats the air and expands it. This cancels the depletion of the oxygen temporarily and the water level stays down.

READ ALSO:   Why is initial tension required in the belt drive?

What happens to the water level when the candle goes out?

The physical aspect: the candle heats the air and expands it. This cancels the depletion of the oxygen temporarily and the water level stays down. When the oxygen is depleted, the candle goes out and the air cools. The volume of the air decreases and the water rises. The temporary temperature change delays the rise of the water.

What is the K in the candle experiment?

The letter k is a constant called the Bolzmann constant. Like any physical law, this is an idealisation and approximation but it is accurate enough for the experiment in question. In the candle experiment, the pressure and temperatures at the beginning and the end are essentially the same.