Roughly how much heat (in Joules) is needed to convert 1.00 kg of ice at 0 $\degree$C into steam at 100 $\degree$C?
A)2 593 000
B)2 260 000
C)333 000
D)420 000
E)3 000 000

Question

Quizplus · Accepted Answer

To convert 1 kg of ice at 0°C to steam at 100°C, you need to consider the heat for melting the ice, heating the water, and vaporizing the water. The total heat is the sum of the heat of fusion (333,000 J), the heat to raise the temperature of water (4,180 J/kg°C * 100°C = 418,000 J), and the heat of vaporization (2,260,000 J). Adding these gives approximately 3,011,000 J, closest to option E.

Roughly How Much Heat (In Joules) Is Needed to Convert °\degree°

Roughly How Much Heat (In Joules) Is Needed to Convert $\degree$