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Did J.J. Thomson discover isotopes?
No, J.J. Thomson did not discover isotopes. Isotopes were discovered by Frederick Soddy and John William Strutt in the early 20th century. J.J. Thomson is known for his discovery of the electron.
What other scientists did j j Thomson work with?
J.J. Thomson worked with several notable scientists during his career, including Sir William Ramsay, who he collaborated with to discover the noble gases; his student Ernest Rutherford, who went on to discover the nucleus of the atom; and his son George Paget Thomson, who won the Nobel Prize in Physics for his work on the wave-like properties of electrons.
What is the basis for the kelvin scale?
AnswerA Kelvin scale is a scale used for measuring temperature in scientific expirements. By: a grade 7The kelvin scale has exactly the same degrees as the centigrade scale HOWEVER the position of zero on the kelvin scale is set at -273.15 on the centrigrade scale.So if water freezes at 0'C it freezes at 273.15 Kand if water boils at 100'C it boils at 373.15'KThe Kelvin scale was made so that equations such as the ideal gas law could be expressed both simply and elequently.PV=nRTwithout the need of fudge factorsPV=nR(T+273.15)As a small addition, the Kelvin scale is based on absolute zero. Zero Kelvin is the absence of all heat and no colder temperature is theoretically possible.The Kelvin scale was developed by William Thomson - a.k.a. Lord Kelvin - and the markings on the scale are not called degrees, but are simply called kelvins.(0o Celsius is equal to 273.15o Kelvin)
What is 0 on a kelvin scale?
First, note that Kelvin is typically not expressed in degree(s), just Temperature Kelvin(e.g., 50 K for 50 kelvin). ***(note2 at bottom, about kelvin vs degree kelvin)Kelvin is a temperature scale based upon 0K being absolute zero*(note1 at bottom), which is currently the lowest possible temperature. This is not possible to actually achieve, but it can be determined as the point at which a 'perfect' (ideal gas) gas would have zero pressure and volume as it contracts on cooling. As most gases behave very much like a perfect gas and the deviation of real gases is well understood, this allows us to calculate the exact temperature at which this would happen. That temperature is zero Kelvin.For the ideal gas this is the point at which the molecules (assumed to be perfect non-interacting mathematical points) stop all motion. So the pressure (which is caused by the gas molecules bouncing off the container walls) is zero. At this point also, the gas has zero kinetic energy.(In reality quantum mechanics shows that particles must have a certain amount of energy even at zero Kelvin. This is termed the 'zero point' energy, and is manifest in a tiny amount of vibrational energy. So in reality there is residual motion in a gas at absolute zero, but this cannot exert any pressure as that would involve removing the residual energy which cannot happen. So in quantum terms it is the point at which no mechanical energy can be extracted from the system.)The Kelvin scale is named for British mathematician and physicist William Thompson, 1st Baron Kelvin (1824-1907), who did much to unify the modern field of Physics.Equivalent Temperatures in Other Temperature Scales-273.16° Celsius-459.67° Fahrenheit0° Rankine**-218° Réaumur*Note1 - The Kelvin scale is indeed based upon the triple point of water, being assigned to 273.16 K; this point is beyond the scope of this discussion, however.**Kelvin and Rankine are both based upon 0 as absolute zero, however Kelvin uses the interval of 1 K is equal to 1° Celsius, and Rankine uses the interval of 1° Rankine is equal to 1° Fahrenheit.***Note2 - The accepted SI unit for temperature is K, not, degree(s) K. In scientific papers you will typically only find K, though it is still colloquially accepted to use degree Kelvin when you mean Kelvin.
Who invented the weather thermometer?
Sir Edmond Halley - of the comet fame - was a British scientist who made a number inventions, one of which was the metal coil thermometer. It is still in use today in refrigerators, freezers, and ovens. See related link for more information.
What is Lord William Thomson Kelvin famous for?
Kelvin invented the Kelvin absolute temperature scale and told us that the atmosphere was 70% nitrogen
Who defined the absolute temperature scale?
The absolute temperature scale was defined by Lord Kelvin (Sir William Thomson) in the 19th century. It is known as the Kelvin scale, where 0 K represents absolute zero, the point at which all molecular motion ceases.
Who developed the kelvin scale?
The Kelvin scale was developed by William Thomson, also known as Lord Kelvin, a Scottish physicist. It is an absolute temperature scale where zero represents the absence of all thermal energy, or absolute zero.
How did William Thomson come up with the kelvin scale?
William Thomson, also known as Lord Kelvin, developed the Kelvin scale by proposing an absolute temperature scale based on the concept of absolute zero, where all thermal motion ceases. He defined the scale based on the properties of ideal gases and set the zero point at -273.15 degrees Celsius.
What is William Thomson famous for making?
William Thomson, 1st Baron Kelvin (also known as Lord Kelvin) was a mathematical physicist and engineer. He is widely known for developing the basis of Absolute Zero and for this reason a unit of temperature measure is named after him.
Which scientists introduced the concept of absolute zero?
The concept of absolute zero was introduced by physicist William Thomson, also known as Lord Kelvin, in the 19th century. Kelvin proposed the absolute temperature scale, which sets the zero point at absolute zero (-273.15 degrees Celsius), where molecular motion theoretically ceases.
Who discovered kelvin?
Lord Kelvin, whose real name was William Thomson, is credited with the discovery of the Kelvin scale of temperature. He proposed this absolute temperature scale in the mid-19th century, establishing 0 K as the point at which all thermal motion ceases.
When was William Thomson born?
William Thomson was born on June 26, 1824.
When was William Alexander Thomson born?
William Alexander Thomson was born in 1816.
When did William Alexander Thomson die?
William Alexander Thomson died in 1878.
When did Edward William Thomson die?
Edward William Thomson died in 1865.
When was Edward William Thomson born?
Edward William Thomson was born in 1794.
