The total pressure on the surface of Mars is variable day-to-day as it is on Earth. On a given day, it is 0.0068 atmospheres. The mole fractions of the top three components in the Martian atmosphere are constant and are 0.953 for CO2, 0.026 for N2, and 0.019 for Ar. In terms of torr the partial pressure of Ar on Mars is how many torr

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .