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How much heat energy is needed to raise the temperature of a 200g piece of lead by 250 degrees Celsius?
The specific heat capacity of lead is 0.128 J/g°C. To calculate the heat energy needed to raise the temperature of the lead by 250°C, you would use the formula: Q = m x c x ΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Plugging in the values, the heat energy needed would be 6400 Joules.
How many BTU does it take to melt 60lbs of lead?
To melt 60 lbs of lead, approximately 25,200 BTU of heat energy is required. Lead has a melting point of 621.5°F and a specific heat capacity of 0.031 BTU/lb°F. Multiplying these values gives the total heat energy needed for melting.
Why is heat energy needed to melt a solid what is this heat energy called?
This energy is the enthalpy of fusion (or latent heat of fusion).
What is the energy necessary for photosynthysys?
Light, and thermal(heat) energy is needed.
A 38 kg block of lead is heated from -26C to 180C how much heat energy does the block of lead absorb to increase his temperature this much?
To find the heat energy absorbed by the lead block, you need to use the specific heat capacity of lead, which is 128 J/kg°C. The formula to calculate heat energy is: Q = m * c * ΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature. Plugging in the values, you can find the heat energy absorbed by the lead block.
What is the name of the energy needed to change a substance from a liquid to a gas?
The energy needed to change a substance from a liquid to a gas is called the enthalpy (or heat) of vaporization.
What is heat energy needed for?
HEATING THINGS! Peace out. :)
Why is heat energy needed to melt a solid what is heat energy called?
Heat energy is needed to melt a solid because it increases the kinetic energy of the particles, causing them to break free from their fixed positions in the solid structure. The heat energy required to melt a solid is called "latent heat of fusion."
Energy needed to change material from solid to liquid?
The energy needed to change a material from solid to liquid is called the heat of fusion or melting point. This energy is required to overcome the intermolecular forces holding the solid together so that it can transition into a liquid state. The amount of energy needed varies depending on the specific material.
Why is heat energy needed to melt a solid. What is this heat energy called?
Heat energy is needed to melt a solid because it provides the molecules in the solid with enough kinetic energy to overcome the forces holding them in a rigid structure. The specific heat energy required to melt a solid at its melting point is called the latent heat of fusion.
What from of energy might be needed for a chemical reaction to take place?
heat & electric energy !
What condition is needed to evaporate surface?
presence of heat energy
