Do you think more energy is required to melt ice completely or boil water Why?

It is much easier to melt ice if heat is applied to it while it takes a much longer time to completely vaporize the same mass of water.

Is more energy required to melt ice completely or boil water?

It takes longer to boil water than to melt ice because of the difference in the amount of heat required to overcome the forces of attraction by keeping the temperature constant during this time.

Does it take more energy to melt or boil water?

Taking this information in hand we can see that that boiling needs approximately 6 to 7 times more amount of energy than in melting. This is the reason it takes longer in boiling than in melting.

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Why does melting ice require much less energy than boiling the same mass of water?

For example, when heat energy is added to ice at its melting point ( A solid substance at its melting point has less energy than the same mass of the substance when it is a liquid at the same temperature. … This heat energy allows the change of state to happen, and the temperature remains constant during the process.

Why does boiling water take more energy than melting?

Why does boiling require the most energy? Because the heat of vaporization is higher than the heat of fusion. It takes more energy to break the attraction between liquid phase molecules into gas then it does between solid phase molecules into liquid. … It doesn’t necessarily take LONGER to boil, it takes MORE HEAT.

Why does it take more energy to melt ice?

The phase change from liquid to gas requires more energy because the bonds must be completely broken for it to take place, rather than just loosened as in the phase change of solid to liquid.

Why is the energy required to completely melt each substance much less than the energy required to completely vaporize each substance?

Notice that for all substances, the heat of vaporization is substantially higher than the heat of fusion. Much more energy is required to change the state from a liquid to a gas than from a solid to a liquid. This is because of the large separation of the particles in the gas state.

Does freezing require energy?

Note that melting and vaporization are endothermic processes in that they absorb or require energy, while freezing and condensation are exothermic process as they release energy.

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Which takes more heat melting ice or evaporating water?

A total of 334 J of energy are required to melt 1 g of ice at 0°C, which is called the latent heat of melting. At 0°C, liquid water has 334 J g1 more energy than ice at the same temperature. … Note that it takes almost six times as much energy to evaporate 1 g of water at 0°C than to raise its temperature to 100°C!

Does it require more energy to vaporize water at the boiling point or to melt water at the melting point explain?

6. Does it require more energy to “vaporize” water at the boiling point or to melt water at the melting point? Explain. It takes more energy to vaporize than to melt because the horizontal section of the graph is much longer during the vaporizing, or boiling.

Is energy required for both melting and boiling?

Remember, we are only looking at the energy required to change the phase, not the energy required to get the substance to the melting or boiling point. Also note that the enthalpies of fusion and vaporization are given as kJ per mole.

When ice melts where does the energy go?

Energy is absorbed during the process of changing ice into water. The water that is produced also remains at 0°C until all of the ice is melted.

How do you calculate the energy needed to melt ice?

Using the equation for a change in temperature and the value for water from Table 1, we find that Q = mLf = (1.0 kg)(334 kJ/kg) = 334 kJ is the energy to melt a kilogram of ice. This is a lot of energy as it represents the same amount of energy needed to raise the temperature of 1 kg of liquid water from 0ºC to 79.8ºC.

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Does boiling take in energy?

As with melting, the energy in boiling goes exclusively to changing the phase of a substance; it does not go into changing the temperature of a substance. So boiling is also an isothermal process. Only when all of a substance has boiled does any additional energy go to changing its temperature.

Why does it take more energy to boil a gram of water than to melt a gram of ice?

You’d need about 7 times more energy to vaporize 1 g of water at 100∘C than to melt the same amount of ice at 0∘C . … When you heat ice at 0∘C to get water at 0∘C , you’re essentially weakening these intermolecular forces and giving the water molecules freedom of movement.

Which requires more heat melting or boiling a substance?

TL:DR Boiling a solid requires substantially more heat than melting a solid, because you must add sufficient heat to move through all three thermodynamic phases: solid to liquid to gas.

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