Substances :ethanol ,water ,nail polish remover , methylated spirits.
If u place 20 ml of each substances given in separate evaporating dishes. What will be the liquid level after 1 min to 5 min? And which one will evaporates faster and slower?
To determine the liquid level after a given amount of time and compare the evaporation rates of the substances, we need to consider the properties of each substance.
1. Ethanol: Ethanol is a volatile organic compound with a low boiling point, which means it evaporates relatively quickly. The liquid level of ethanol will decrease as it evaporates, and after 1-5 minutes, you can expect a noticeable decrease in the liquid level.
2. Water: Water has a higher boiling point compared to ethanol and evaporates at a slower rate. Although water will also evaporate, the decrease in liquid level after 1-5 minutes will be less noticeable compared to ethanol.
3. Nail polish remover: Nail polish remover typically contains acetone, a highly volatile substance. Acetone evaporates very quickly, similar to ethanol. Therefore, the liquid level of the nail polish remover will decrease significantly after 1-5 minutes.
4. Methylated spirits: Methylated spirits, or denatured alcohol, is a mixture of ethanol and other chemicals. Similar to ethanol, it will also evaporate at a faster rate than water. The liquid level of methylated spirits will decrease noticeably after 1-5 minutes.
Based on the properties mentioned, ethanol and nail polish remover (containing acetone) will evaporate faster compared to water and methylated spirits. The liquid levels of ethanol and nail polish remover will decrease significantly within the 1-5 minute timeframe, while the decrease in liquid level for water and methylated spirits will be relatively smaller.
To determine the liquid level after 1 to 5 minutes and which substance evaporates faster or slower, we need to consider the volatility or boiling points of the substances.
1. Ethanol: Ethanol is a volatile substance with a boiling point of 78.37°C. It evaporates relatively quickly compared to the other substances.
2. Water: Water has a boiling point of 100°C. It evaporates at a slower rate compared to ethanol but faster than the remaining substances.
3. Nail polish remover: Nail polish remover generally contains acetone, which has a boiling point of 56.05°C. Acetone evaporates at a faster rate compared to both ethanol and water.
4. Methylated spirits: Methylated spirits often contain ethanol as a major component, so it will evaporate similarly to ethanol.
Based on the boiling points and general volatility of these substances, the evaporation rate and liquid level after 1 to 5 minutes would likely be as follows:
1 minute:
- Ethanol: The liquid level may be significantly lower, as it evaporates quickly.
- Nail polish remover: The liquid level may be noticeably lower due to acetone's faster evaporation.
- Water: The liquid level may be slightly lower, but not as much as ethanol or nail polish remover.
- Methylated spirits: The liquid level may be similar to ethanol due to the ethanol content.
3 minutes:
- Ethanol: The liquid level may continue to decrease significantly.
- Nail polish remover: The liquid level may show a noticeable decrease, but not as much as ethanol.
- Water: The liquid level may be lower than before, but not as much as ethanol or nail polish remover.
- Methylated spirits: The liquid level may be similar to ethanol and nail polish remover.
5 minutes:
- Ethanol: The liquid level may continue to decrease slowly but still noticeably.
- Nail polish remover: The liquid level may show a decrease, but slower than ethanol.
- Water: The liquid level may remain lower than the initial level, but less change compared to ethanol or nail polish remover.
- Methylated spirits: The liquid level may still be similar to ethanol and nail polish remover.
In summary, ethanol and nail polish remover (containing acetone) are likely to evaporate relatively quickly, whereas water will evaporate at a slower rate. Methylated spirits, consisting of ethanol, will generally follow the evaporation pattern of ethanol.