Multiple Choice
For which of the substances below is ΔHof = 0?
A) O2(g)
B) N2(l)
C) Na(g)
D) Xe(l)
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q131: The standard temperature is _; the standard
Q132: A glass containing 200.0 g of H<sub>2</sub>O
Q133: A 307-g sample of an unknown mineral
Q134: A system contracts from an initial volume
Q135: Suppose a new metallic element X is
Q136: Given that CaO(s) + H<sub>2</sub>O(l) → Ca(OH)<sub>2</sub>(s),
Q138: Pentaborane B<sub>5</sub>H<sub>9</sub>(s) burns vigorously in O<sub>2</sub> to
Q139: When heat is absorbed by the system
Q140: Atoms A and Z may form either
Q141: Which of the following has a standard