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To calculate the energy released when freezing 2.5 g of water, we use the heat of fusion for water, which is approximately 334 J/g. Multiplying the mass of water by the heat of fusion, we get:
Energy = 2.5 g × 334 J/g = 835 J.
Thus, freezing 2.5 g of water releases about 835 joules of energy.
What else can I help you with?
How much energy is needed to keep one gallon of water from freezing?
None. When water freezes it _releases_ energy (the heat of fusion, 333.55 kj.kg). To keep it from freezing, simply keep the energy constant. If the ambient temperature is below zero C (32 F) the rate of energy loss will depend on the temperature of the air and the thermal resistance (insulation value) of the water's container, and other factors such as wind speed. In those conditions you must replace the energy lost to prevent the water from freezing. However, the energy needed depends on the rate of loss, not on the amount of water.
Constants for water Hvap 40.65 kJmol Hf -285.83 kJmol Hfusion 6.03 kJmol specific heat 4.186 JgC molar mass 18.02 g How much energy is generated from freezing 2.5 g water?
To calculate the energy generated from freezing 2.5 g of water, we use the heat of fusion (Hfusion) of water, which is 6.03 kJ/mol. First, convert the mass of water to moles: (2.5 , \text{g} \div 18.02 , \text{g/mol} \approx 0.1386 , \text{mol}). Then, multiply the number of moles by the heat of fusion: (0.1386 , \text{mol} \times 6.03 , \text{kJ/mol} \approx 0.835 , \text{kJ}). Thus, approximately 0.835 kJ of energy is released when 2.5 g of water freezes.
If 30.86g of H2O is frozen (from liquid to solid) how much heat energy is required?
No heat (energy) is required to freeze water (from liquid to solid). Freezing RELEASES energy (heat), as it is an exothermic event. If you want to know how much energy is release, you need to know the heat of fusion for water, and then multiply that by the mass of water being frozen.
How much energy is generate from freezing 2.5 g water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
If the process of melting absorbs heat energy from the surroundings then what would the process of freezing do?
Melting is the result of enough heat energy being transferred INTO an object to turn it into a liquid. Freezing is the result of enough heat energy being transferred OUT of a liquid to turn it into a solid. Melting and freezing are not as much of a "process" as they are a result. For example: When you put water into the freezer, the heat energy in the warm water is transferred into the colder air, which causes the water to freeze. That process causes the air in the freezer to warm up slighltly. The process of refridgeration then transfers that heat out of the freezer, which makes the air in the freezer nice and cold again.
How much energy is generated from freezing 2.5g water?
The amount of energy generated from freezing 2.5g of water can be calculated using the specific heat capacity of water and the heat of fusion for water. The energy released would be equal to the heat of fusion of water (334 J/g) multiplied by the mass of water (2.5g). By multiplying these values, you can determine the total energy released during the freezing process.
How much energy is generated from freezing 2.5 water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
How much energy is generated from freezing g water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
How much energy is involved in the freezing of 4256g of water?
You need to know the initial temperature.
How much energy is generated from freezing 2.5 g water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
How much energy is needed to keep one gallon of water from freezing?
None. When water freezes it _releases_ energy (the heat of fusion, 333.55 kj.kg). To keep it from freezing, simply keep the energy constant. If the ambient temperature is below zero C (32 F) the rate of energy loss will depend on the temperature of the air and the thermal resistance (insulation value) of the water's container, and other factors such as wind speed. In those conditions you must replace the energy lost to prevent the water from freezing. However, the energy needed depends on the rate of loss, not on the amount of water.
How much of the worlds energy is generated using windmills?
Approximately 6.1% of the world's energy is generated using wind turbines.
Constants for water Hvap 40.65 kJmol Hf -285.83 kJmol Hfusion 6.03 kJmol specific heat 4.186 JgC molar mass 18.02 g How much energy is generated from freezing 2.5 g water?
To calculate the energy generated from freezing 2.5 g of water, we use the heat of fusion (Hfusion) of water, which is 6.03 kJ/mol. First, convert the mass of water to moles: (2.5 , \text{g} \div 18.02 , \text{g/mol} \approx 0.1386 , \text{mol}). Then, multiply the number of moles by the heat of fusion: (0.1386 , \text{mol} \times 6.03 , \text{kJ/mol} \approx 0.835 , \text{kJ}). Thus, approximately 0.835 kJ of energy is released when 2.5 g of water freezes.
How much energy is generated from freezing 2.5 grams of water?
The amount of energy required to freeze 2.5 grams of water is approximately 4.2 kJ. This energy is used to remove the heat from the water, allowing it to change from a liquid to a solid state at 0 degrees Celsius.
If 30.86g of H2O is frozen (from liquid to solid) how much heat energy is required?
No heat (energy) is required to freeze water (from liquid to solid). Freezing RELEASES energy (heat), as it is an exothermic event. If you want to know how much energy is release, you need to know the heat of fusion for water, and then multiply that by the mass of water being frozen.
How much energy is generate from freezing 2.5 g water?
2.5 g 1 mol/18.02 g (-285.83) kJ/mol
How much energy air compressor alone consumes in the energy generated by a gas turbine?
Air compressor alone consumes about 50 to 60 % of energy generated by a gas turbine..
