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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.
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What happens to solids and liquids on heating?
When solids are heated, they gain energy and vibrate more, causing an increase in temperature. Liquids, on the other hand, absorb the heat energy and may evaporate to form gases depending on the temperature reached.
What is the difference between heated and cooled?
Heated refers to raising the temperature of something, while cooled refers to lowering the temperature. Heating involves adding thermal energy to increase temperature, while cooling involves removing thermal energy to decrease temperature.
What shows the increase in size of an object when heated?
When an object is heated, its particles absorb energy and move faster, causing them to spread out and increase in size. This phenomenon, known as thermal expansion, is commonly observed in materials like metals, liquids, and gases. Temperature changes can lead to noticeable expansions or contractions in objects due to this effect.
When water gets heated on a stove what kind of energy is transferred?
When water is heated on a stove, thermal energy is transferred to the water. This causes the water molecules to move faster and increase in temperature.
When matter is heated do particles get more energy?
Yes, when matter is heated, the particles within it gain more energy. This increased energy causes the particles to move faster and vibrate more, leading to an increase in temperature.
What happens to air heated by radiation?
When air is heated by radiation, the air molecules absorb the radiant energy and increase in kinetic energy, causing them to move more vigorously. This increased motion leads to expansion of the air, resulting in a rise in temperature.
What happens to solids and liquids on heating?
When solids are heated, they gain energy and vibrate more, causing an increase in temperature. Liquids, on the other hand, absorb the heat energy and may evaporate to form gases depending on the temperature reached.
Do particles vibrate slower when heated?
No, particles actually vibrate faster when they are heated. This increase in vibration is due to the higher energy levels associated with the increase in temperature.
What is the difference between heated and cooled?
Heated refers to raising the temperature of something, while cooled refers to lowering the temperature. Heating involves adding thermal energy to increase temperature, while cooling involves removing thermal energy to decrease temperature.
What would increase a temperature of a substance?
An increase in energy input, such as heat transfer from a heat source or mechanical work, would increase the temperature of a substance. This causes the particles in the substance to move faster, leading to an increase in kinetic energy and temperature.
When a substace is heated how does the molecular motion change?
When a substance is heated, the molecules within it absorb energy and increase their kinetic energy, causing them to move more rapidly. This increased molecular motion leads to increased collisions between molecules and a higher overall temperature of the substance.
What shows the increase in size of an object when heated?
When an object is heated, its particles absorb energy and move faster, causing them to spread out and increase in size. This phenomenon, known as thermal expansion, is commonly observed in materials like metals, liquids, and gases. Temperature changes can lead to noticeable expansions or contractions in objects due to this effect.
When water gets heated on a stove what kind of energy is transferred?
When water is heated on a stove, thermal energy is transferred to the water. This causes the water molecules to move faster and increase in temperature.
When matter is heated do particles get more energy?
Yes, when matter is heated, the particles within it gain more energy. This increased energy causes the particles to move faster and vibrate more, leading to an increase in temperature.
What happened to the kinetic energy of the particles in a sample of gas as the temperature of the sample increase?
As the temperature of a gas sample increases, the kinetic energy of the gas particles also increases. This is because temperature is a measure of the average kinetic energy of the particles in the sample. Therefore, an increase in temperature corresponds to an increase in the average kinetic energy of the gas particles in the sample.
What happens to soilds when they are heated?
When solids are heated, their particles absorb energy and vibrate more vigorously, causing the solid to expand. This increase in kinetic energy can lead to the solid eventually melting into a liquid, as the particles break free from their fixed positions.
How does fire radiate heat?
Fire radiates heat through the process of thermal radiation, where electromagnetic waves are emitted from the heated fire source. These waves transfer heat energy to surrounding objects or surfaces that absorb them, causing an increase in temperature.
