Which phase change is endothermic? A) H₂O(t)→ H₂O(g) B) I2(g) → I2(s) C) Hg(t)→ Hg(s) D) H₂S(g) → H₂S(t)

asked Feb 4, 2023 225k views

3 votes

Which phase change is endothermic?

A) H₂O(t)→ H₂O(g)
B) I2(g) → I2(s)
C) Hg(t)→ Hg(s)
D) H₂S(g) → H₂S(t)

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4 votes

A is endothermic because H2O(l) is gaining heat and turning into gas.
The other three are exothermic because they are losing heat.

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