What intermolecular forces are affected by the size of the molecule?

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.

Why is it that 85.48 rounded to two significant figures is 85 and not 86?

How does nathan’s hypothesis lead to new investigations