Question

Today you will be investigating how a change in temperature affects a gas inside of a container.

Hypothesis: What is the effect of temperature on the motion of particles?
Designing an Experiment After developing your hypothesis, the next step in the inquiry process is to design a controlled experiment in order to test your hypothesis. In a controlled experiment, all variables are kept constant except the one that you are testing. The variables you keep the same are called controlled variables. The variable that you change or test is called the manipulated variable. The variable that responds to changes you make is called the responding variable.
a. How would you design a controlled experiment to test the hypothesis you made about the volume of a gas?

b. What is the manipulated variable in your experiment?

c. What is the responding variable in your experiment?

Answer 1

To test the effect of temperature on gas volume, set up a controlled experiment with temperature as the manipulated variable and the gas volume as the responding variable. Adjust temperature in controlled intervals, measuring the volume change, while keeping all other conditions constant.

Step-by-step explanation:

To investigate the effect of temperature on the motion of particles in a gas, you could design a controlled experiment by having a sealed container with a fixed amount of gas and a method to measure its volume. You would then adjust the temperature of the gas in controlled intervals and measure how the volume changes. All other conditions such as pressure and the amount of gas would be kept constant.

In this experiment, the manipulated variable would be the temperature since it is the variable you are changing to test the effects on the volume of the gas. The responding variable would be the volume of the gas, as it is the characteristic that is expected to change in response to variations in temperature.

It's important to note that according to principles derived from the kinetic theory of gases, as the temperature of a gas increases (assuming the pressure and amount of gas remain constant), the volume should also increase. This direct relationship comes from the understanding that increasing temperature will increase the kinetic energy of the gas particles, leading them to move more rapidly and thus occupy more space. Conversely, as the temperature decreases, so should the volume.

Answer 2

a. How would you design a controlled experiment to test the hypothesis you made about the volume of a gas?
I think you should choose containers that can expand. Place one in a hot area, another in an area with room temperature, and another inside a freezer or a cold area.

b. What is the manipulated variable in your experiment?
The manipulated variable in the experiment would be the temperature. (hot, room temperature, cold)

c. What is the responding variable in your experiment?
The responding variable in th experiment would be the volume of gas inside each container.

Prior to putting the containers in its assigned places, volume must first be recorded. Another measure of volume must be taken during the experiment and last measurement would be taken after the exposure to any given temperature.