How much energy is absorbed by water?

In summary, water absorbs energy through convection and factors such as temperature, pressure, and the amount of water present can affect the amount absorbed. The energy can be used for various purposes or released back into the environment through processes like evaporation. It is typically measured in joules or calories using specialized equipment.
  • #1
Roxy
52
0
What formula do I use the find :
1. How much energy is absorbed by water?

2. amount of heat produced per gram of fuel burned?
 
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  • #2
If it is regarding the fuel burning, you'll just use [itex]\Delta H[/itex]; this value will give you how many calories are released as thermal energy; you'll divide this to the mole amount of compound to find the molar enthalpy. Then find the heat absorbance capacity of water by using a phase diagram.
 
  • #3


The amount of energy absorbed by water can vary depending on factors such as temperature and volume of water. However, a commonly used formula to calculate the energy absorbed by water is Q = m * c * ΔT, where Q is the energy absorbed, m is the mass of water, c is the specific heat capacity of water (4.184 J/g°C), and ΔT is the change in temperature.

To find the amount of heat produced per gram of fuel burned, you can use the formula Q/m = ΔH, where Q is the energy produced, m is the mass of fuel burned, and ΔH is the heat of combustion of the fuel. This formula takes into account the energy released during the combustion process.
 

1. How does water absorb energy?

Water absorbs energy through a process called convection, where heat energy from the surroundings is transferred to the water molecules, causing them to vibrate and increase in temperature.

2. What factors affect the amount of energy absorbed by water?

The amount of energy absorbed by water can be affected by factors such as temperature, pressure, and the amount of water present. The type of energy being absorbed, such as heat or light, can also impact the amount absorbed.

3. How is the energy absorbed by water used?

The energy absorbed by water can be used in various ways, such as to increase the temperature of the water, to power turbines for electricity generation, or to fuel biological processes in aquatic organisms.

4. What happens to the energy absorbed by water?

The energy absorbed by water is either released back into the environment through processes like evaporation or used for various purposes as mentioned above. It can also be transferred to other substances that come into contact with the water.

5. How is the energy absorbed by water measured?

The energy absorbed by water is typically measured in joules (J) or calories (cal). Scientists use specialized equipment, such as calorimeters, to measure the amount of energy absorbed by water under controlled conditions.

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