(a) Consider the combustion of ether, given below:

1 C₄H₁₀O(g) + 6 O₂(g) 4 CO₂(g) + 5 H₂O(g)

If C₄H₁₀O(g) is decreasing at the rate of 0.970 mol/s, what are the rates of change of O₂(g), CO₂(g), and H₂O(g)? O₂(g)/t = mol/s CO₂(g)/t = mol/s H₂O(g)/t = mol/s (b) The decomposition reaction given below:

2 IF₅(g) 1 I₂(g) + 5 F₂(g)

is carried out in a closed reaction vessel. If the partial pressure of IF₅(g) is decreasing at the rate of 124 torr/min, what is the rate of change of the total pressure in the vessel? P_tot /t = torr/min