1) Assuming you have constant pressure and number moles, if you fill up a balloon with a certain volume of a gas at 445 K, when the volume is doubled, the temperature will _______________ (a)decrease by a factor 3 (b)increase by a factor of 4 (c)decrease by a factor of 2 (d)increase by a factor of 3 (e)increase by a factor of 2.
Filll in with an answer from the following:
1) Assuming you have constant pressure and number moles, if you fill up a balloon with a certain volume of a gas at 445 K, when the volume is doubled, the temperature will _______________ (a)decrease by a factor 3
(b)increase by a factor of 4
(c)decrease by a factor of 2
(d)increase by a factor of 3
(e)increase by a factor of 2.
2) Which statement is true for the decomposition of 2NH3 (l) ⟶ N2 (g) + 3H2 (g) ___________ (Δ?&Δ? ?????ℎ?????).
(a)Δ? is less than Δ? because of the pressure-volume work done by the gaseous products.
(b)Δ? is greater than Δ? because the pressure is constant.
(c)Δ? is greater than Δ? because of the pressure-volume work done by the gaseous products.
(d)Δ? is less than Δ? because the atmosphere does pressure-volume work done by the gaseous products.
(e)Δ? is equal Δ? because both are state functions.
3)Consider the following energy-level diagram for a particular electron in an atom The following statement is incorrect: ________________.
(a) they are all incorrect.
(b) We would observe an electronjumping from level 2 to level 1 as a single line in a line spectrum.
(c) If the electron is in level 2, it may jump to level 1 by emmitting a photon with energy of |Δ?|.
(d) If the electron is in level 1, it may jump to level 2 by absorbing any photon having energy of at least |Δ?|.
(e) If the electron is in level 1, it may jump to level 2 by absorbing a photon with energy of |Δ?|.
4) The following configuration, [Ne]3s13p1, may represent _____________.
(a) an excited-state electron configuration of a Mg atom.
(b) a ground-state electron configuration of a Mg+ atom.
(c) a ground-state electron configuration of a Al+ atom.
(d) a ground-state electron configuration of a Na+ atom.
(e) an excited-state electron configuration of a Ne- anion.
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