Education and Career Forum

I read the topic Difeerence between Air Standard Cycle and Fuel-Air Cycle of Internal Combustion Engine.
in this topic i read effect of the variable specific heat.
specific heat of fuel increase with increas the temperature except monoatomic gases.
so my question is why specific heat of monoatomic gases not incrase with temperature?

This is a very nice question, Actually in Mono-atomic gas there is only one Atom and due to that reason its atom do not participate in any chemical or Ionic reaction.
The mono-atomic Gas are also called as Nobal Gas because their chemical elements are stable & have single atom molecules at standard temperature and pressure (STP).

Examples of these type of gases are helium, neon, argon, krypton, xenon and radon. The heavier noble gases can form chemical compounds, but the lighter ones are non-reactive or inert. So specific heat of Mono-atomic gas do not increase with temperature.