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How much energy must be removed from a 125 g sample of benzene at K to liquefy the sample and lower the temp to 335.0 K?
Wiki User
∙ 8y ago
To find the energy required to lower the temperature of benzene from K to 335.0 K and liquefy it, you need to calculate the heat energy using the specific heat capacity of benzene and the heat of fusion of benzene. This will involve calculating the energy required to cool the benzene from K to its freezing point and then the energy required to change its state at the freezing point.
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What is specific gravity and percentage purity of benzene?
Specific gravity is a measure of the density of a substance compared to the density of water. The specific gravity of benzene is typically around 0.88. Percentage purity of benzene would refer to the amount of pure benzene in a sample compared to impurities or other substances present.
Why crystals disappear during suction filtration of a sample crystallized from benzene?
Crystals may disappear during suction filtration of a sample crystallized from benzene if the crystals dissolve in the solvent being used for filtration, or if they break up into smaller particles that pass through the filter. This can happen if the crystals are not fully dried or if too much force is applied during filtration.
Which sample of water contains the most heat energy 10 g at 10 degreescelsius or 20 g at 10 degrees celsius?
The sample of water that contains the most heat energy is the 20 g sample at 10 degrees Celsius because it has double the mass of the 10 g sample. Heat energy is directly proportional to mass, so the sample with more mass will contain more heat energy.
How can you tell which one the two sample will release energy in the form of heat when the two sample are in contact?
The sample that releases energy in the form of heat when in contact with the other sample will typically be the warmer one. This is because heat flows from the object with higher temperature to the object with lower temperature, resulting in a transfer of heat energy that can be felt as heat.
What describes the total kinetic energy of the particles of a sample?
The total kinetic energy of the particles in a sample is a measure of the sum of the individual kinetic energies of each particle in the sample. It depends on factors like temperature and the mass of the particles. The kinetic energy is directly proportional to the temperature of the sample.
What happens to a sample of matter when its particles lose kinetic energy?
A loss of kinetic energy in the atoms or molecules of a sample of matter will result in the cooling of the sample. That sample will get colder as remove thermal energy from it. The atoms/molecules of a substance have kinetic energy associated with them. This kinetic energy is the result of atomic and/or molecular motion. As a sample of matter cools, the atoms and/or molecules will lose mobility. Loss of mobility and vibrational energy, which are forms of kinetic energy, will become apparent when thermal energy is removed from the sample.
How do you make a pure sample of xenon?
Liquefy air and then allow it to heat up - collecting the gas through fractional distillation.
What is the specific heat of benzene if 3450J of heat is added to 150.0 g sample of benzene and its temperature increases from 22.5 degrees celsius to 35.8 degrees celsius?
The specific heat of benzene is 1.75 J/g°C. You can use the formula q = mcΔT, where q is the heat added, m is the mass of benzene, c is the specific heat, and ΔT is the change in temperature. Plug in the values and solve for c.
Does butane contain benzene?
No, butane and benzene are two different compounds. Butane is a flammable gas commonly used as a fuel, while benzene is a colorless liquid that is a known carcinogen. They have different chemical structures and properties.
What is specific gravity and percentage purity of benzene?
Specific gravity is a measure of the density of a substance compared to the density of water. The specific gravity of benzene is typically around 0.88. Percentage purity of benzene would refer to the amount of pure benzene in a sample compared to impurities or other substances present.
Which sample was removed during surgery and sent to a pathologist to be examined under a microscope?
The tissue sample removed during surgery and sent to a pathologist for examination under a microscope is called a biopsy. Biopsies are important for determining the presence of abnormal or cancerous cells in the tissue.
When a sample of liquid is cooled its thermal energy?
decreases, causing the molecules in the liquid to move slower and become more tightly packed together. This can lead to the liquid eventually reaching its freezing point and solidifying into a solid.
Why crystals disappear during suction filtration of a sample crystallized from benzene?
Crystals may disappear during suction filtration of a sample crystallized from benzene if the crystals dissolve in the solvent being used for filtration, or if they break up into smaller particles that pass through the filter. This can happen if the crystals are not fully dried or if too much force is applied during filtration.
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 types of energy would exist in both a solid sample and a gas sample of the same monatomic substance?
kinetic energy from translation
Which sample of water contains the most heat energy 10 g at 10 degreescelsius or 20 g at 10 degrees celsius?
The sample of water that contains the most heat energy is the 20 g sample at 10 degrees Celsius because it has double the mass of the 10 g sample. Heat energy is directly proportional to mass, so the sample with more mass will contain more heat energy.
How can you tell which one the two sample will release energy in the form of heat when the two sample are in contact?
The sample that releases energy in the form of heat when in contact with the other sample will typically be the warmer one. This is because heat flows from the object with higher temperature to the object with lower temperature, resulting in a transfer of heat energy that can be felt as heat.
