alleryStart learning →How does the free energy of formation of CO2 vary with heat?
ARises very sharply
BFalls very sharply
CStays nearly constant
DSwings around zero
Answer & Solution
Correct answer: C. Stays nearly constant
C + O2 giving CO2 leaves the moles of gas unchanged, so the entropy change is small and the line is nearly flat.
Keep practising Extractive Metallurgy
Browse all Extractive Metallurgy questions for Bihar Board Class 12 (Science), or explore more Chemistry topics.
Related questions
Flotation is used to purify which compound from sodium chloride and clay?Which collectors have been used for oxide minerals in flotation?What are the minerals that do not float into the froth called?What is the first flotation stage, which gives a rougher concentrate, called?Which of these is a typical depressant in froth flotation?Which substance is added as a frother to stabilise foam in flotation?Which class of salts is particularly popular as collectors for sulfide minerals?Froth flotation separates minerals from gangue by exploiting differences in what?