Consider the decomposition of barium carbonate: BaCO3(s)⇌BaO(s)+CO2(g)BaCO3(s)⇌BaO( s)+CO2(g) Substance ΔH∘f (kJ/mol) S∘ (J/(mol⋅K)) BaCO3(s) −−1216.3 112.1 BaO(s) −−553.5 70.42 CO2(g) −−393.5 213.6 Part A Calculate the equilibrium pressure of CO2 at 298 K.

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.