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Why does water have an entropy of zero when it is at zero kelvin?
Wiki User
∙ 10y ago
because at absolute zero or zero kelvin the molecular momentum is zero and dead state occurs
Wiki User
∙ 10y ago
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What temperature is absolute zero in degrees K?
Kelvin (K) is actually the same scale as Celsius (C), but whereas Celsius is set such that zero Celsius is the freezing point of water, the Kelvin scale is set such that zero Kelvin is absolute zero, which is the temperature at which all kinetic. Absolute zero is zero degrees Kelvin, at which point there is no kinetic activity in a molecule or atom. There are presently no theoretical means of achieving absolute zero.
What is the si units of entropy?
Joules per Kelvin (J/K)
The lowest point on the Kelvin scale?
Zero Kelvin, also known as absolute zero.
Choose the term that matches the description.the freezing point of water on the Kelvin scale?
zero
Each degree on the Kelvin scale equals?
The relationship between Kelvin and Celsius scale is K=C+273. 15. Where K is Kelvin temperature and C is Celsius temperature. Each degree on the Kelvin scale equals the same degree in Celsius scale differing only in the zero value. The freezing point of water and absolute zero are the zero values of Celsius and Kelvin scale respectively.
What is the absolute zero on the Kelvin scale?
zero Kelvin.
Describe the conditions necessary for a sample to have zero entropy?
The only way to have zero entropy is to have a temperature of absolute zero.
What is absolute zero and why is it important?
Absolute zero is the temperature of outer space. It is the lowest temperature matter can reach. It is -273.15 on the Celsius scale and 0.0 on the Kelvin scale. There is still a type of energy, known as zero point energy, the energy of outer space, left at 0.0 Kelvin, but this energy cannot be used. Work cannot be obtained from things at 0.0 Kelvin, because there is no lower temperature to which the energy might flow. The entropy of anything at 0.0 Kelvin is maximum, meaning no work can be obtained from it. (Entropy is reverse of what we are perhaps used to: minimum means lots of work can be extracted which causes the entropy to INCREASE until the entropy is maximum and no further energy can be extracted..) There are laws of physics which only agree with reality when the Kelvin scale is used. For example, the ideal gas law is PV = NRT. The pressure times the volume of an ideal gas is the product of the number of moles of gas (N) times a constant (R) times the temperature. This equation only works of the temperature is in Kelvin (the units of the Kelvin scale are Kelvin, not degree). The equation for the power radiated from a hot object only works if the temperature is Kelvin. In fact, much of physics only works when you use the Kelvin scale for temperature.
Is absolute zero is equal to -273 degrees on the Kelvin scale?
Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.Kelvin is defined in such a way that absolute zero is zero Kelvin.
What temperature is absolute zero in degrees K?
Kelvin (K) is actually the same scale as Celsius (C), but whereas Celsius is set such that zero Celsius is the freezing point of water, the Kelvin scale is set such that zero Kelvin is absolute zero, which is the temperature at which all kinetic. Absolute zero is zero degrees Kelvin, at which point there is no kinetic activity in a molecule or atom. There are presently no theoretical means of achieving absolute zero.
What is the kelvin scale based on?
The Kelvin scale is based on temperature. To add to the above, the Kelvin scale is based on the Celsius scale in that the measurment unit is the same. The difference is the starting point where 0 Kelvin is set at absolute zero, or -273.15ºC.
What is the si units of entropy?
Joules per Kelvin (J/K)
When and what are some of the major points on the Kelvin scale?
On the Kelvin scale, 0 is absolute zero, which is the theoretical temperature at which all atomic motion stops. This is not a possible temperature to reach, not even in deep space. There is no "below zero" on the Kelvin scale. Water melts at 273 Kelvin, and boils at 373 Kelvin.
Would you expect the entropy of an alloy to be 0 at 0 kelvin?
yes
Is freezing temperature of water is zero on both the Kelvin and Celsius scales?
no it is -5
How are celsius and kelvin different?
Kelvin scale assigns the value 0 K (zero kelvins) to absolute zero instead of to the freezing point of water; note that the degree symbol is not used.
What is so unique about the absolute scale?
Temperature a measure of the average vibration or movement of particles, they are constantly moving, vibrating in solids. As things get colder they vibrate less. It was calculated that the temperature where particles would stop moving completely to be -273.15 C or -459 F. They then called this absolute 0. They then used a Celsius scale for the absolute scale. So the melting point of ice is 0 Celsius which equates to 273.15 Kelvin. (Kelvin is the name of the scale) Hope that helps.
