In the solid and liquid states of matter, volume is constant because the amount of matter does not change. In a gas however volume can change because of the amount of pressure and the temperature, which heats up the particles making them move around more and take up more space.
When non-experimental variables are held constant, it means keeping factors other than the independent variable the same for all participants or conditions in order to ensure that any observed effects are due to the independent variable and not to any other variable. This helps to isolate the impact of the independent variable on the dependent variable and strengthens the validity of the experiment.
pressure
Temperature and the amount of gas (moles) must be kept constant for Boyle's law to hold true. This means the pressure and volume of a gas are inversely proportional provided the temperature and amount of gas remain constant.
The volume of the gas must remain constant for pressure and temperature to be directly proportional, according to Boyle's Law. This means that as the pressure of a gas increases, its temperature will also increase proportionally, as long as the volume is held constant.
"Constant pressure" means the pressure must not change.
What variables must be kept constant
Variables that must be kept constant in an experiment are known as control variables. These variables are factors that can influence the outcome of the experiment, so keeping them constant ensures that any observed changes are due to the independent variable being tested.
Controlled variables are quantities that must remain constant.
because other conditions could affect the dependent variable
In an experiment, variables that must be kept constant are called control variables. Two common examples include temperature and pH levels. These variables should be kept constant to ensure that any changes observed in the dependent variable are a result of the independent variable being tested.
The two variables must be identical.
In Boyle's law, the constant is the temperature of the gas. The variables are the pressure and volume of the gas. Boyle's law states that at a constant temperature, the pressure of a gas is inversely proportional to its volume.
When non-experimental variables are held constant, it means keeping factors other than the independent variable the same for all participants or conditions in order to ensure that any observed effects are due to the independent variable and not to any other variable. This helps to isolate the impact of the independent variable on the dependent variable and strengthens the validity of the experiment.
there are three kinds of variables.a variable must be a situation,condition or a factor1.change or manipulated variables.-are the variables that are being tested or changed.2.constant variables.-are the variables that you are not intended to test or study,or the variables to be kept constant.3.responding variables.-are the results of the maipulated variables.
Well, pressure has to be kept constant and so does the mass of the gas with Charles's Law. Charles's Law--V1/T1=V2/T2--can be derived from the Combined Gas Law--V1xP1/T1=V2xP2/T2--by keeping the pressure constant which in turn cancels out the pressure in the Combined Gas Law leaving you with Charles's Law. Hope that helps you!
What must be held constant among the bonds whose interest rates are shown on yield curve
The number of dependent variables in an experiment varies, but there is often more than one. experiments also have controlled variables are quantities that a scientist wants to remain constant, and he must be observe them as carefully as the dependent variables.