Achange in the overall quantity supplied can occur because of changes in all of the following areas except:
a. capacity and technology
c. prices of substitutes and complements
b. cost structure
d. past prices

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.