How are indicators chosen for titration? A. On the basis of the pH at equilibrium
B. On the basis of the pH of the reacting acid
C. On the basis of the pH at the equivalence point of the two reagents
D. On the basis of the pH of the analyte

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

1. they vary with a higher number because boiling is way hotter than melting

the answer to this question is 3.