Evaporation is a physical change- it is still alcohol. The change can be undone by colling the air and condensing the ethyl alcohol vapor back to liquid alcohol.
Evaporation of alcohol is a physical change.
No, it is not safe to use rubbing alcohol in a simple thermometer. Rubbing alcohol is a disinfectant and can affect the accuracy of the thermometer readings. It is recommended to use a thermometer as per the manufacturer's instructions.
Mixing is a physical process.
The rise in alcohol in a thermometer is a result of the expansion of the alcohol due to increased temperature. As the temperature increases, the molecules in the alcohol move faster and spread out, causing the liquid to rise in the thermometer tube.
In a thermometer, a variable is the temperature being measured. Thermometers detect changes in temperature by expanding or contracting a substance, such as mercury or alcohol, which then indicates the temperature on a scale.
physical
It is a physical change.
Alcohol vaporizing is a physical change because it does not involve a change in the chemical composition of the alcohol molecules. It is simply a phase change from liquid to gas.
The flammability of ethyl alcohol is chemical. It's a chemical property because if you change the molecular compound of ethyl, it will have a different flammability.
It is a chemical change
Physical; from liquid to gas, but it's still alcohol.
Yes, boiling alcohol and considering the vapor is a physical change as it does not alter the chemical structure of the alcohol molecules. The alcohol vapor can be condensed back into liquid alcohol without undergoing a chemical change.
Solubility is considered as a chemical property.
No, it's physical.
When ethyl alcohol evaporates, it is a physical change because the chemical composition of the alcohol remains the same. Evaporation is a process in which a substance changes from a liquid state to a gaseous state without undergoing a chemical reaction.
When iodine dissolves in alcohol, it is a physical change because no new substances are formed. The iodine molecules are simply dispersed in the alcohol solution, but the chemical properties of iodine and alcohol remain the same.