The pressure in Denver, Colorado (elevation 5280 ft), averages about 24.9 in Hg. Convert this pressure to each indicated unit.
b . mmHg
d . Pa
Solution 25E Step 1: Part (a) Given data: q = 0.763 kJ = 763 J w = -840 J By plugging values in the equation of first law of thermodynamics we can determine the state of process, = 763 J + (-840 J) = -77 J The process is exothermic as the heat flows from system to surrounding.