Do different liquids increase in density at different rates when heated?

[Opehelia]

Homework Statement

We were given an assignment to place corn syrup, dish washing detergent, shampoo, water and olive oil in a beaker, along with 6 non-metal objects, to show how they would separate based on their relative densities. The last problem on the paper states: "Write a hypothesis for what you think would happen if you took your finished column and heated it in the microwave."

Homework Equations

I don't have to do anything mathematically for this.

The Attempt at a Solution

I said that if heated in the microwave, some liquids may change densities at different rates based on how fast they heat up. I know water takes 1 calorie per gram to heat 1 degree Celsius, but I am not sure about other liquids. It thought it might be possible that another liquid may heat - and expand- more quickly than others and therefore become less dense more quickly compared to other liquids, so it would rise in the column. Does this make sense or am I on the wrong track?

 

[futurepocket]

According to me, density is mass / volume. When you heat up a liquid and turn it into gas, its density increases because its volume increases. However, different liquids have different heat capacities (the amount of heat required to raise the temperature by 1 degrees celcius), therefore, the rate, which is related to time, would be different for different liquids as some would take longer than others to get to the same gaseous state.

Hope that helps!