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What is the mass of a piece of copper that undergoes a 25 degrees C temp change with the loss of 428 J of energy?
Wiki User
∙ 11y ago
q = mass * specific heat * change in temperature
428 joules = (mass)(0.385 J/gC)(25o C)
= 44 grams copper
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Wiki User
∙ 11y ago
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How can the atomic mass change?
Depends, what do you mean "change"? Atomic mass "changes" whenever something undergoes decay or breaks apart. In this respect, atomic mass is not exactly conserved either. Rest mass gets converted to energy; e=mc^2, meaning energy is equal to mass times the speed of light squared. This energy is usually the kinetic energy of the particle that gets dislocated from the original atom.
Is temp or heat measured in degrees?
If you want to be pedantic, scientists measure temperature in kelvins, not degrees. Heat is energy and is measured in energy units, like joules.
What is equally spaced units between two points?
Degrees
How much heat energy will be required to lower the temperature of 2.67kg of steam from 282 degrees Celsius to 105 degrees Celsius?
You mean how much heat energy will be lost/transferred as you are losing Joules here. All in steam, so a simple q problem and no change of state. 2.67 kg = 2670 grams q = (2670 grams steam)(2.0 J/gC)(105 C - 282 C) = - 9.45 X 105 Joules ----------------------------------- This much heat energy must be lost to lower the temperature of the steam.
Type of energy on X axis of Phase change graph?
Thermal energy (heat)
When matter undergoes change of state what does it absorb or release?
Energy.
Which property of the sound wave undergoes a change with an increase in its energy?
b
How do you calculate the energy tyransferred when 3kg opf copper is heated from 20 degrees to 220 degrees?
To calculate the energy transferred when heating copper, you can use the formula: Energy = mass * specific heat capacity * temperature change. The specific heat capacity of copper is 0.385 J/g°C. Plugging in the values, you get: Energy = 3kg * 0.385 J/g°C * (220°C - 20°C).
What is the amount of energy in hot copper?
The amount of energy in hot copper is determined by its temperature and mass. This energy is typically measured in joules (J) or calories (cal). The energy content can be calculated using the specific heat capacity of copper and the change in temperature.
Do Fireworks change blank into blank and blank energy?
Fireworks change chemical energy in the form of gunpowder into light, heat, and sound energy when ignited. The gunpowder in the fireworks undergoes a rapid chemical reaction, releasing energy in the form of a colorful display.
When ice melts it gains energy and is call this type of change?
When ice melts and gains energy, it undergoes a phase change from solid to liquid. This process is known as melting or fusion.
Why is latent heat considered potential energy?
This is referred to as conservation of energy
What does the electron produce when they change energy levels?
When electrons change energy levels, they emit light or energy in the form of electromagnetic radiation. This emitted light can have specific frequencies or colors, depending on the difference in energy levels that the electron undergoes.
How does energy changes as a substances?
Energy can change when a substance undergoes a phase change (such as melting or vaporization) or a chemical reaction. During these processes, energy is either absorbed (endothermic) or released (exothermic) as the internal structure of the substance changes. This energy change is due to the breaking or forming of bonds between atoms, resulting in a change in the overall energy content of the system.
What happens when a pure substance undergoes a chemical change?
when a pure substance undergoes a chemical change it is no longer that same substance. A chemical change changes the identity of the substance. Hope i helped
How much heat energy is required to raise the temperature of 0.362 kg of copper from 23.0 degrees Celsius to 60.0 degrees Celsius?
The amount of heat energy required can be calculated using the formula: Q = mcΔT. Given m = 0.362 kg, c = 390 J/kg°C for copper, and ΔT = (60.0 - 23.0) = 37.0 °C, plug these values into the formula to find the heat energy required to raise the temperature of the copper.
Why does copper burn blue?
The chemical change causes the color change when the two new chemicals combine.
