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How much heat is removed from the skin by the evaporation of 190 g about 12 cup of isopropyl alcohol?
The amount of heat removed can be calculated using the formula q = m*l, where q is the heat removed, m is the mass of the substance evaporated (190 g), and l is the heat of vaporization of isopropyl alcohol (204 kJ/kg). Convert mass to kg (0.190 kg) and calculate the heat removed: q = 0.190 kg * 204 kJ/kg = 38.76 kJ. So, approximately 38.76 kJ of heat is removed from the skin by the evaporation of 190 g of isopropyl alcohol.
What is common between melting and evaporation?
Both melting and evaporation involve a change in physical state from a solid to a liquid (melting) or from a liquid to a gas (evaporation). In both processes, energy is absorbed to break the intermolecular forces holding the molecules together.
Is heat energy being added or removed during boiling?
Heat energy is being added during boiling to change the liquid into vapor. This added heat energy causes the molecules in the liquid to overcome the intermolecular forces holding them together, leading to the phase change.
How does evaporation change from a liquid to a solid?
Evaporation is the process where a liquid turns into a gas, not a solid. The change from a liquid to a solid is called solidification or freezing, where the particles of a liquid come together to form a solid structure as the temperature decreases.
Is heat taken away or added in evaporation?
Heat is taken away during evaporation. As the liquid absorbs heat from its surroundings and gains energy, some of the molecules at the surface of the liquid gain enough energy to overcome the intermolecular forces holding them together, and they escape into the gas phase. This process removes heat from the remaining liquid, causing it to cool down.
Is heat energy being added or removed during the process of evaporation?
In condensation heat is removed In evaporation heat is added
What is the name of the energy removed in the process of evaporation?
heat energy
What occurs when liquids change to gases as heat is added?
evaporation
When a molecule moves faster is the heat added or removed?
added
The changing of liquid into a gas is called?
It is called the Opposite of Condensation - that is Evaporation.
What is the process in which heat is added to liquid and makes a gas?
The process is called evaporation. Heat is added to a liquid, causing the molecules to gain energy and transition into a gaseous state. Evaporation occurs at the surface of the liquid.
Why object coll when heat is removed?
Because the object becomes hot when heat is added.
What is the being added or removed when a substance temperature changes?
HEAT
What is being added or removed when a substance's temperature changes?
heat
Is evaporating a physical change?
Yes. Evaporation is a physical change of state. In the case of evaporation enough heat, called the Latent Heat of Vaporization, is added to a liquid to change it from liquid to gas.
What do you call heat that is added or removed from a substance but does not change the state of the substance sensible heat latent heat super heat or radiation heat?
Sensible heat is the term used to describe heat that is added or removed from a substance without changing its state. It relates to the temperature of the substance and can be measured using a thermometer.
How much heat is removed from the skin by the evaporation of 190 g about 12 cup of isopropyl alcohol?
The amount of heat removed can be calculated using the formula q = m*l, where q is the heat removed, m is the mass of the substance evaporated (190 g), and l is the heat of vaporization of isopropyl alcohol (204 kJ/kg). Convert mass to kg (0.190 kg) and calculate the heat removed: q = 0.190 kg * 204 kJ/kg = 38.76 kJ. So, approximately 38.76 kJ of heat is removed from the skin by the evaporation of 190 g of isopropyl alcohol.
