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How does the temperature remain constant in a vacuum flask. Explain why in can do so over a long period of time?
Vacuum is a great insulator, because there needs to be some medium for processes of conduction or convection to occur. The only possible way to transfer heat through vacuum is radiation, which is not as effective, especially that flask walls are also constructed to limit radiation heat transfer(they are reflective).
Temperature stays the same if there are no means to transfer energy between interior end environment.
What else can I help you with?
What is the constant and the variables in Boyles law?
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.
What happends to the speed of a wave if the medium and temperature and pressure do not change?
The speed of a wave remains constant if the medium, temperature, and pressure do not change. This is because the speed of a wave is determined by the properties of the medium through which it is traveling, and as long as those properties remain constant, the speed will also remain constant.
Does the frequency of a wave remain constant if the medium temperature and pressure do not change?
Yes, the frequency of a wave remains constant as long as the medium temperature and pressure do not change. Temperature and pressure affect the speed of sound in a medium, not the frequency of the wave.
What two factors must be constant with boyle's law?
According to Boyle's law, temperature and amount of gas must be constant. This means that as pressure and volume change, temperature and amount of gas should remain the same for the law to hold true.
Does the cooling constant in newton's law of cooling change depending on the temperature of the vessel?
No. By definition, the constant does not change with temperature for a given cooling system. The constant "represents" all the particular characteristics of the cooling system, except for the time and temperature variables. If temperature influences the system characteristics, the vessel's dimensions, heat capacity, or heat transfer properties, for example, all of these effects will be completely accounted for by the single constant.
What must remain constant for Boyle's law to be true?
1. A more correct name is Boyle-Mariotte law. 2. Only the temperature must remain constant.
What happen to the temperature during phase change?
The temperature remain constant.
What happens to the temperature and the speed of the molecules when gas is compressed?
The temperature and speed remain constant.
Which variables must be kept constant for Boyle's law to hold?
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.
What does not remain constant during and experiment and is used to measure change?
Temperature.
The variable that Boyles law holds constant is?
The variable that Boyle's law holds constant is the temperature. Boyle's law states that the pressure of a gas is inversely proportional to its volume, as long as the temperature remains constant.
What must the temperature be for the gas to remain at a constant pressure?
"Constant pressure" means the pressure must not change.
What must remain constant for pressure and temperature to be directly proportional?
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.
What is the constant and the variables in Boyles law?
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.
What happens to pressure when the temperature and volume is halved?
if kelvin temp is halved, the volume is halved if pressure is constant.
What happends to the speed of a wave if the medium and temperature and pressure do not change?
The speed of a wave remains constant if the medium, temperature, and pressure do not change. This is because the speed of a wave is determined by the properties of the medium through which it is traveling, and as long as those properties remain constant, the speed will also remain constant.
What happens when the temperature stays the same in a melting curve?
During melting the temperature remain constant if it was achieved the melting point.
