Which of the following is the trend down a period? a. the number of complete electron shells increases by one. b. the number of complete electron shells stays the same. c. none of these. d. the number of outer shell electrons decreases by one.

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

gas

explanation:

smoke is the matter of a gas