In order to answer this question, you need the enthalpy of fusion of ice, which is 333.55 J/g (Joules/gram). The enthalpy of fusion is the amount of heat that must be absorbed or lost in order to change physical state.

The number of Joules required to melt the ice = enthalpy of fusion of ice x mass of ice.

1 kg = 1000g

40kg x (1000g/1kg) = 40,000g

Joules needed to melt the ice = 333.55 J/g x 40000 g = 13342000 J or

1.3342 x 107 J

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167.2 joules

About 13,340 Joules.

About 5,525 Joules.

This heat is 32,48 joules.

Heat required to melt 1 g of ice at 0Â°C is approximately 80 cal . This is also called latent heat of fusion of ice.

The melting of ice is a physical change from a solid state into a liquid state. The amount of heat required to melt 50 g of ice is 16,744 Joules.

In order to answer this question, you need the enthalpy of fusion of ice, which is 333.55 J/g (Joules/gram). The enthalpy of fusion is the amount of heat that must be absorbed or lost in order to change physical state. The number of Joules required to melt the ice = enthalpy of fusion of ice x mass of ice. Joules needed to melt the ice = 333.55 J/g x 40 g = 13342 J

To answer this, you need to know the ∆Hfusion of water, which happens to be 334 J/g. So, to melt 12.8 g of ice at 0ºC, the joules needed = (12.8 g)(334 J/g) = 4275 joules

334 j/g =167000 j

The necessary heat is 9,22 joules.

you can't melt water

heat of fusion

The unit for the heat of vaporization is J/g or Joules per gram of material. The amount of energy required = mass * heat of vaporization = 5.0 g * 5.0 J/g = 25.0 J (Q.E.D.)

Heat of Fusion

30

Melting is a change of state of a substance caused by an increase in thermal energy, so heat is required to melt a substance.

You need to multiply the enthalpy of fusion of ice by the mass of the ice (in grams). The enthalpy of fusion is the amount of heat that must be absorbed by a solid to change states to liquid, or vice versa. The enthalpy of fusion of ice is 333.6 J/g. Therefore, just multiply the mass of the ice in grams by 333.6, and the product is the number of Joules required to melt the ice.

heat of fusuion

heat of fusion

Heat of fusion.

The energy required to melt a substance

The energy required to melt a substance

The amount of heat required to melt a solid material into liquid (say ice into water) without any rise in temperature is known to be the latent heat of fusion or latent heat of melting.

No

heat of fusion