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a constant
What changes and what remains the same during a physical change
The answer to your question is the Control Group.
The constant Volume process, also known as Isovolumetric, is where the volume is constant and does not change. In a P, V, Diagram this should be where volume is constant where Pressure is increased. The work done (area under the curve) would be = to 0 in this case.
variables
a constant
A constant variable is one that does not change during an experiment. If your experiment includes a dozen cupcakes and that number does not change throughout your experiment, the dozen cupcakes is a constant variable.
The constant/experimental constant.
Temperature remains constant during the change in phase (physical state).
Temperature.
A constant factor is one maintained unchanged throughout an experiment so that it does not affect the outcome. These are also referred to as controlled variables.
Mass is conserved. This means it remains constant.
Temperature remains constant
a variable is the thing that we change during the experiment while control is the thing that we remain it to be constant through the whole experiment.
During the time of change of state,the heat or temperature is used to increase the potential energy and there by change of state.This time there will be no change in temperature.
Constant
During the phase change, the temperature remains constant. Once the phase change is complete, the temperature will increase.