It takes 52.0 j to raise the temperature of an 11.7 g piece of unknown metal from 13.0∘c to 25.0 ∘c. what is the specific heat for the metal?

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.