How much energy does it take to convert 500 g of ice at -20 oC to steam at 250oC? The specific heat capacity of ice is 2.1 J/goC. A mol is a unit of measure in chemistry. 500 g of H2O is equal to 27.8 mol H2O
Valuable Information:
The specific heat capacity of liquid water is 4.18 J/g oC,
and the specific heat of steam is 1.8 J/g oC.
(Notice that you have a kJ to J conversion to make here!)
This problem requires five steps to complete. You will need to give the answer to each step in the assignment.
1. How much heat was needed to warm the ice to zero degrees?
2. How much heat was needed to melt the ice?
1130556 J
2239845 J
3472199 J
166800 J
3. How much heat was needed to raise the temperature of the liquid water to boiling?
239000 J
443080 J
105000 J
209000 J
4. How much heat was needed to convert the water to steam?
166667 J
237557 J
1131500 J
24.7 J
5. How much heat was needed to raise the temperature of the steam to 250 degrees?
135000 J
148900 J
34669 J
24989 J
Valuable Information:
The specific heat capacity of liquid water is 4.18 J/g oC,
and the specific heat of steam is 1.8 J/g oC.
(Notice that you have a kJ to J conversion to make here!)
This problem requires five steps to complete. You will need to give the answer to each step in the assignment.
1. How much heat was needed to warm the ice to zero degrees?
2. How much heat was needed to melt the ice?
1130556 J
2239845 J
3472199 J
166800 J
3. How much heat was needed to raise the temperature of the liquid water to boiling?
239000 J
443080 J
105000 J
209000 J
4. How much heat was needed to convert the water to steam?
166667 J
237557 J
1131500 J
24.7 J
5. How much heat was needed to raise the temperature of the steam to 250 degrees?
135000 J
148900 J
34669 J
24989 J