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Is it true in a gas kept at a constant temperature all molecules move with the same speed?
In general, all molecules do not vibrate at the same speed. There is a bit of complexity to this question and answer, so let's look at things a bit more closely to see what might be going on.
Different molecules have different constituent atoms and different shapes or configurations. Molecules vibrate by the compression and stretching as well as the twisting or torquing of the bonds between the atoms that make them up. There are some other aspects to molecular vibration as well, and these involve the actual make up of the individual atoms. The variety of the molecular structures we find makes for variation in the way a given molecule vibrates. As regards molecules of the same substance, we can still find some variation. Let's look more closely at one kind of molecule.
If we consider a container of water, which has H2O as its chemical formula, we'll find the the distance between the hydrogen atoms and the oxygen atom in a given molecule (which is something on the order of 96 picometers) will be varying slightly over time. We'll also find the angle of separation between the hydrogen atoms (which is a bit over 104 degrees) will vary slightly over time as well. At a fixed temperature and pressure, it may be possible to state that the average vibration of the molecules of that water are the same, but there will still be slight variations in individual molecules. This is the nature of examining large numbers of molecules of a given substance over time, even if the substance is at a fixed temperature and pressure. In cases where different molecules are combined, their vibrations can and will vary.
What else can I help you with?
Boyle's law states that the volume of a gas is inversely propertional to its pressure if the?
Temperature and amount (number of moles) is kept 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.
When does raising the temperature of a gas increase its preasure?
This is the Gay-Lussac law: at constant volume of a gas the temperature increase when the pressure increase.
Gases kept at constant temperature if its temperature is change from 50 celsius to 100 celsius by what factor does the factor change?
The temperature factor increases to 1.1547, approx.
What happens to a gas temperature at a given pressure?
In a closed system with constant pressure and no input or output of heat, the gas temperature will remain constant. In that same system, if the pressure is increased, then the gas temperature will also increase. If pressure is decreased, then the gas temperature will decrease.
Boyle's law states that the volume of a gas is inversely propertional to its pressure if the?
Temperature and amount (number of moles) is kept constant.
What electrical devices has to be kept at a constant temperature?
furnace, fridge
How is the tympanic membrane kept a constant temperature and humidity?
not sure
Suppose the temperature of the air in a balloon is increased if the pressure remains constant.. what quantity must change Would it be Volume or Number of molecules or Compressibility OR Adhesion?
If the pressure is kept constant while increasing the temperature of the air in a balloon, the volume of the gas inside the balloon would change. This is because as the temperature rises, the gas molecules gain energy and move faster, leading to an increase in volume to maintain a constant pressure.
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.
When does raising the temperature of a gas increase its preasure?
This is the Gay-Lussac law: at constant volume of a gas the temperature increase when the pressure increase.
Where is the perfect meter kept?
Its kept in a museum in Paris, inside a glass case with the temperature inside the case kept the constant.
What happens when the force is kept the same over different distances?
The speed stays constant.
Why is 1 meter length kept in 0 degree Celsius?
All metals expand when heated and contract when cooled. It is important, therefore, that the standard metre is kept at some constant temperature. That constant temperature could be any temperature but the triple point of water is a convenient benchmark.
What usually happens in general for a gas at a constant volume?
The gas volume become constant when the pressure is increased to a point that makes the distance between the gas molecules equal to zero at this point no more increase of temperature with pressure is observed. Or if the pressure and temperature are kept constant within a system then the volume can also be constant as long as you are able to maintain the pressure and temperature at constant level.
What happens to kinetic energy of gas particles as temperature decreases at a constant pressure?
kinetic energy increases with the increase in temperature is a postulate in kinetic molecular theory of matter.if the pressure is kept constant when temperature decreases the kinetic energy of the molecules decreases resulting in decrease in the volume of the gas. Charle's Law state's that For a given mass of dry gas at constant pressure ,volume is directionally proportional to temperature ie V~T
What will happen if the pressure on a sample of gas is raised three times and it's temperature is kept constant?
If the pressure on a sample of gas is raised three times and the temperature is kept constant, according to Boyle's Law, the volume of the gas will decrease proportionally to maintain a constant temperature. This means the gas will be compressed and occupy a smaller volume.
