a piece of copper with the mass of 85g is heated from 30 c to 45 c in the process the copper absorbs 523 j energy. what is the specific heat capacity of the copper 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.