The following reactions take place in a cylinder equipped with a movable piston at atmospheric pressure (figure p5.31). which reactions will result in work being done on the surroundings? assume the system returns to an initial temperature of 110 degree c. hint: the volume of a gas is proportional to number of moles (n) at constant temperature and pressure. ch 4 (g) + 2 o 2(g) rightarrow co 2 (g) + 2 h 2o (g) c 1h 8 (g) + 5 o 2(g) rightarrow 3 co 2(g) + 4 h 2o(g) n 2(g) + 2 o 2 (g) rightarrow 2 no 2(g) figure p5.31 in which direction will the piston described in figure 5.31 move when the following reactions are carried out at atmospheric pressure inside the cylinder and alter the system has returned to its initial temperature of 110 degree c? hint: the volume of a gas is proportional to number of moles (n) at constant temperature and pressure. n 2(g)+ 3 h 2(g) rightarrow 2 nh 3(g) c(5) + o 2(g) rightarrow co 2(g) c 2h 5oh(g) + 3 o 2(g) rightarrow 2 co 2(g) + 3 h 2 o(g)