0
To perform the calculation you need to know the melting point temperature, the heat capacity, and the latent heat of fusion for copper.
The melting point of copper is 1084.62 oC, so you would have to first heat it up to that temperature before it would melt. The temperature change would be
1084.62 - 83 = 1081.62 °C or a change of 1081.62 K since °C and K are the same size.
The specific heat capacity of copper is 0.38 J g-1 K-1 or 0.38 kJ kg-1 K-1 so for 3.0 kg it would be
3.0 kg x 0.38 kJ/kg∙K x 1081.62 K = 1233 kJ
The heat of fusion is reported to be 13.050 kJ mol-1 (which means we have to first convert that to kJ/kg). The atomic weight of copper is 63.546, so it would take
3.0 kg x 1000 g/kg x 1 mole/63.546 g x 13.050 kJ/mol = 616 kJ.
Combined the total energy required would be 1849 kJ.
What else can I help you with?
How does changing the initial temperature of the copper affect how much heat energy it has?
Changing the initial temperature of the copper will affect the amount of heat energy it has because temperature is directly related to the kinetic energy of the particles in the copper. A higher initial temperature means the particles have more kinetic energy and therefore more heat energy. Conversely, a lower initial temperature means less heat energy present in the copper.
What is the significance of heat capacity?
The specific heat of a substance allows us to calculate the amount of heat energy required to change its temperature. Water has a specific heat nearly 11 times great than copper, therefore, water will take 11 times more energy to heat. Also water heats slowly and copper heats and cools rapidly.
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.
Will concrete brick aluminum or copper take most energy to increase its temperature?
Copper will take the most energy to increase its temperature, followed by aluminum and then concrete brick. This is because copper has a higher specific heat capacity compared to aluminum and concrete brick, meaning it requires more energy to raise its temperature.
What substance would absorb the most heat energy with the least change in temperature water or copper?
Copper would absorb more heat energy with less change in temperature compared to water due to its higher specific heat capacity. This means that copper can absorb more heat per unit mass before its temperature noticeably increases, while water's temperature would rise more easily when absorbing heat.
How much heat energy would be needed to heat 1 KG of copper by 2 degrees?
O.385x1x2=0.77 Answer: 0.77
How much heat energy would be needed to heat 1 kg of copper by 2 degrees Celsius?
The specific heat capacity of copper is about 0.385 J/g°C. To find the total heat energy needed to heat 1 kg of copper by 2°C, you can use the formula: Q = m * c * ΔT Where: Q = heat energy m = mass (1 kg) c = specific heat capacity (0.385 J/g°C) ΔT = change in temperature (2°C) Plugging in the values: Q = 1 kg * 0.385 J/g°C * 2°C = 0.77 kJ Therefore, 0.77 kJ of heat energy would be needed.
How much heat is needed to raise the temperature of 6.00 g of copper by 15.0 C?
The specific heat capacity of copper is 0.385 J/g°C. Using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the temperature change, we can calculate that the heat needed is 34.65 J.
How does changing the initial temperature of the copper affect how much heat energy it has?
Changing the initial temperature of the copper will affect the amount of heat energy it has because temperature is directly related to the kinetic energy of the particles in the copper. A higher initial temperature means the particles have more kinetic energy and therefore more heat energy. Conversely, a lower initial temperature means less heat energy present in the copper.
How much heat energy is required to raise the temperature of 0.365 of copper from 23.0 to 60.0 The specific heat of copper is 0.0920?
To calculate the heat energy required, you can use the formula: Q = mcΔT, where Q is the heat energy, m is the mass of the copper (0.365 kg), c is the specific heat capacity of copper (0.0920 J/g°C), and ΔT is the change in temperature (60.0°C - 23.0°C). First, convert the mass to grams and then plug the values into the formula to find the heat energy required.
How does changing the initial temperature of copper affect how much heat energy?
Changing the initial temperature of copper will affect the amount of heat energy transferred. A higher initial temperature of copper will result in a greater amount of heat energy being transferred to the surroundings, while a lower initial temperature will result in less heat energy being transferred. This is based on the principles of thermal equilibrium and the heat capacity of copper.
How much energy is required to vaporize 1 oz of copper?
To vaporize 1 ounce (approximately 28.35 grams) of copper, you would need about 1,800 joules of energy per gram, as the heat of vaporization of copper is around 1,800 kJ/kg. Therefore, the total energy required for 1 ounce of copper would be approximately 51 kJ (or 51,000 joules). This calculation assumes that the copper is initially at its melting point before vaporization occurs.
Is copper a poor conductor of energy?
No. Copper is a good conductor of both electricity and heat.
What is the significance of heat capacity?
The specific heat of a substance allows us to calculate the amount of heat energy required to change its temperature. Water has a specific heat nearly 11 times great than copper, therefore, water will take 11 times more energy to heat. Also water heats slowly and copper heats and cools rapidly.
In the cylinder of an automobile engine the chemical energy of gasoline is initially transformed into what?
In an automobile engine cylinder, the chemical energy of gasoline is initially transformed into heat energy through combustion. This heat energy is then converted into mechanical energy as the expanding gases push the piston down, which drives the engine's crankshaft and ultimately powers the vehicle.
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).
How much thermal energy is needed to rise the temperature of 1 kg of copper by 1 c?
The specific heat capacity of copper is approximately 0.385 J/g°C. Therefore, to raise the temperature of 1 kg (1000 g) of copper by 1°C, you would need 385 J of thermal energy.
