How to calculate the energy of the ice absorbs heat then becomes water

In summary, the formula for calculating the energy absorbed by ice when it melts into water is Q = m * L. The mass of the ice can be determined by weighing it or using its density and volume. If the ice is not at its freezing point, the specific heat capacity and change in temperature must also be considered in the formula. The energy absorbed by ice can be converted to different units using conversion factors. It is not a fixed value and can vary based on the mass of the ice and the amount of heat applied to it.
  • #1
destroying
5
0
as the topic asks
but, if i want to know the energy of the 0 Centigrade melt into 0 Centigrade water, how to calculate it?
i mean i don't know how to use the equation Q=c*m*t, 'cause the specific heat of water and that of ice are different
 
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  • #2
The equation q=msd(theta) would give zero anyway because d(theta) is zero, it is not to be used.
There's a fixed quantity, the latent heat, which is taken as 80cal/g or 334J/g for fusion of ice
 
  • #3
got it, thanks
 

1. What is the formula for calculating the energy absorbed by ice when it melts into water?

The formula for calculating the energy absorbed by ice when it melts into water is Q = m * L, where Q is the energy absorbed, m is the mass of the ice, and L is the latent heat of fusion for water (334 kJ/kg).

2. How do you determine the mass of the ice in the calculation?

The mass of the ice can be determined by weighing the ice using a scale or by using the density of ice (0.92 g/cm³) and the volume of the ice.

3. What if the ice is not at its freezing point when it absorbs heat and melts into water?

In order to calculate the energy absorbed by ice at a temperature other than its freezing point, the specific heat capacity of ice (2.09 J/g°C) and the change in temperature must also be taken into account in the formula Q = m * L + m * c * ΔT.

4. How do you convert the units for the energy absorbed by ice?

The energy absorbed by ice is typically calculated in joules (J). However, it can also be converted to other units such as calories (cal) or British Thermal Units (BTUs) using conversion factors.

5. Is the energy absorbed by ice a fixed value?

No, the energy absorbed by ice can vary depending on the mass of the ice and the amount of heat energy applied to it. The latent heat of fusion for water is constant, but the final energy absorbed by the ice will depend on these variables.

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