Consider the reaction 2H2 + O2 + 2H2O What is the ratio of the initial rate of the appearance of water to the initial rate of disappearance of oxygen?
a) 1:1
b) 2:1
c) 1:2
d) 2:2
e) 3:2

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm