Kelly had a sample of an unknown substance which properties of the substance will be the same no matter how large or small her sample is?
The properties of the substance that will remain the same, regardless of the sample size, include:
1. Density: The density of a substance remains constant regardless of the amount of the substance present.
2. Melting and boiling point: The melting and boiling points of a substance are inherent characteristics that do not depend on the quantity of the substance.
3. Chemical composition: The chemical composition of a substance, including the types and quantities of atoms present, remains the same regardless of the sample size.
4. Specific heat capacity: The specific heat capacity of a substance, which is the amount of heat energy required to raise the temperature of a given amount of the substance, remains constant regardless of the sample size.
The properties of a substance that will remain the same regardless of the size of the sample are known as intensive properties. Some examples of intensive properties include temperature, density, melting point, boiling point, and color.
The properties of a substance that remain the same regardless of the sample size are called intensive properties. These properties are independent of the quantity or amount of the substance being observed. Examples of intensive properties include temperature, density, boiling point, color, and refractive index.
To determine if a property is intensive, Kelly can perform the following steps:
1. Select a property to test: Kelly can choose one of the properties mentioned above or any other property she wants to investigate.
2. Prepare samples of different sizes: Kelly should obtain several samples of the unknown substance in different quantities or sizes. For example, she could take a small amount using a dropper or scoop, and another larger quantity using a measuring cylinder or balance.
3. Measure the property: Kelly needs to measure the selected property for each sample. For example, if she chose temperature as the property, she could use a thermometer to measure the temperature of each sample. Alternatively, if density is the property, she could measure the mass and volume of each sample and then calculate the density.
4. Compare the results: By comparing the measurements of the property for each sample, Kelly can determine if the property remains the same irrespective of the sample size. If the values are consistent and similar across different sample sizes, then the property is an intensive property.
By following these steps, Kelly will be able to identify the properties of the unknown substance that remain constant regardless of the sample size.