Which of the following constants is/are needed to calculate the amount of energy required to heat 30.5g of H₂O(s) at -25.0°C to H₂O(l) at 55.0°C? $\Delta$ H_fus (H₂O)
II. $\Delta$ H_vap (H₂O)
III.specific heat of H₂O(s)
IV.specific heat of H₂O(l)
V.specific heat of H₂O(g)

Question

Which of the following constants is/are needed to calculate the amount of energy required to heat 30.5g of H₂O(s) at -25.0°C to H₂O(l) at 55.0°C?

\Delta

H_fus (H₂O)
II.

\Delta

H_vap (H₂O)
III.specific heat of H₂O(s)
IV.specific heat of H₂O(l)
V.specific heat of H₂O(g)

Quizplus · Accepted Answer

To heat ice from -25.0°C to liquid water at 55.0°C, you need the specific heat of ice (III) to warm it to 0°C, the enthalpy of fusion (I) to melt it, and the specific heat of liquid water (IV) to heat it from 0°C to 55.0°C.

Which of the Following Constants Is/are Needed to Calculate the Amount