Chloroplasts.
Always present in almost all plants because they are vital to the process of photosynthesis and primary food production. Onions are not primary producers and do not produce their own food and hence do not require this organelle!
Hope that helps!
Answer: ΔH°f of gaseous nitrogen monoxide is 148.0 kJ/mol
Explanation:
The balanced chemical reaction is,
The expression for enthalpy change is,
where,
n = number of moles
(as heat of formation of substances in their standard state is zero
Now put all the given values in this expression, we get
Therefore, ΔH°f of gaseous nitrogen monoxide is 148.0 kJ/mol
Answer:
This informative text, written in easily understood language, will allow those without a mechanical engineering background to understand air calculation and ventilation problems.