If we reverse the reaction to read Z+Q - X+Y, the +AH would be a -AH. Does this indicate that heat is given off or absorbed in the reverse reaction?

Consider the elements bromine and chlorine; which elements has a larger ionic radius ?

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.

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