Specific heat capacity of lead is 0.13J/g-K. how much heat (in J) is required to raise the temperature of the substance with a mass of 15.0 g from 60°C to 130°C

Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)