text: The Q temperature coefficient is a measure of temperature sensitivity based on the chemical reactions.
  The Q is calculated as:
  where;  
  : R is the rate
  : T is the temperature in Celsius degrees or kelvin.
  Rewriting this equation, the assumption behind Q is that the reaction rate R depends exponentially on temperature:
  Q 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 most biological systems, the Q value is ~ 2 to 3.