636 J
800kj-----------Apex<('-'<)
The way to make an ice cube is to fill a container with water at room temperature (20 degree Centigrade, say) and then put the container in a freezer, which removes heat from the container/water until the water temperature is below the freezing point (0 degree C, approximately, depending on the atmospheric pressure and water purity). So, the temperature of an ice cube is at or below zero degree C -- something that cannot be achieved outside the freezer. Now take the ice cube out of container and place it on table top. The air and the table surface that the ice cube is in contact are pretty much at 20 degree C temperature. The ice cube starts absorbing the heat from its surrounding. The outer skin will melt first, because its temperature is now above zero degree C, until the whole ice cube becomes a puddle of water. If you touch the puddle just after the ice disappears, you can feel that the water is cooler than the air, because the heat absorption is incomplete. Wait an hour or so, and the water will be at the same temperature as the room air.
The energy needed to melt a substance is given by its heat of fusion. For L's, this value is typically around 334 J/g. So, to melt 25.4 grams of L's, you would need 25.4 grams x 334 J/g ≈ 8476 J of energy.
125.6 kJ (APEX)
The enthalpy of fusion of a substance (H fusion) tells us how much energy is required to melt one gram of the substance. By dividing the energy input (1 kJ) by the enthalpy of fusion, you can calculate the mass of the substance that the energy will melt. It's a simple ratio: mass = energy input (kJ) / enthalpy of fusion (kJ/g).
that depends on the size of the ice cube, how much salt, and the ambient temperature.
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Your hand is much warmer than the table.
It takes approximately 64,000 Joules of energy to melt 1kg of gold. Therefore, to melt 2kg of gold, you would need around 128,000 Joules of energy.
The energy required to melt ice is known as the heat of fusion, which is about 334 joules per gram. Therefore, it would take approximately 3340 joules of energy to melt 10g of ice.
36.8 kj
Well it is sprite cause it is more bubbly but pepsi tastes much better.
The measurement of how much heat energy is required for a substance to melt is called the heat of fusion. It is the amount of energy required to change a substance from a solid to a liquid at its melting point.
J mesons are subatomic particles that do not experience a melting phase transition like larger particles or materials. As such, they do not require energy to melt as they do not solidify.
The energy required to melt 1 kg of copper at its melting point of about 1084°C is approximately 205 kJ. Therefore, to melt 2 kg of copper, you would need around 410 kJ of energy.
The melting rate of an ice depends on the temperature of the surrounding. If the temperature is higher in the surrounding then the ice will melt at a faster rate and if the temperature is low then it will take more time to melt. The process of heat exchange is important whether it is air or water.
It takes approximately 2.4 million joules of energy to melt 1 metric ton of iron.