My watch list
my.chemeurope.com  

my.chemeurope.com

With an accout for my.chemeurope.com you can always see everything at a glance – and you can configure your own website and individual newsletter.

  • My watch list
  • My saved searches
  • My saved topics
  • My newsletter
Register free of charge
Login  
eng  
DeutschEnglishFrançaisEspañol

Q10 (temperature coefficient)



The Q10 temperature coefficient is a measure of the rate of change of a biological or chemical system as a consequence of increasing the temperature by 10 °C. There are many examples where the Q10 is used, one being the calculation of the nerve conduction velocity and another being calculating the contraction velocity of muscle fibres. It can also be applied to chemical reactions and many other systems.

The Q10 is calculated as:

Q_{10}=\left( \frac{R_2}{R_1} \right )^{\left( \frac{10}{T_2-T_1} \right) }

where

R is the rate
T is the temperature in Celsius degrees or kelvins.

Q10 is a unitless quantity, as it is the factor by which a rate changes, and is a useful way to express the temperature dependence of a process.

For biological systems, the Q10 value is generally between 1.5 and 2.5.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Q10_(temperature_coefficient)". A list of authors is available in Wikipedia.
Your browser is not current. Microsoft Internet Explorer 6.0 does not support some functions on Chemie.DE