Posted by **Erica** on Tuesday, November 21, 2006 at 1:26pm.

lead is a soft, dense metal with a specific heat of 0.028 kcal/kg degrees C, a melting point of 328.0 degrees C and a heat of fusion of 5.5 kcal/kg. How much heat must be provided to melt a 250.0 kg sample of lead with a temperature of 20.0 degrees Celsius?

q1 = heat to move the temperature of solid lead from 20.0 degrees C to the melting point of 328.0 degrees C.

q1 = mass x specific heat x delta T.

You have mass, specific heat and temperature difference.

q2=heat to melt the lead at its melting point.

q2 = mass x heat of fusion.

you have mass and you have heat of fusion.

total q = q1 + q2.

Post your work if you get stuck.

- physics -
**Patrick H**, Sunday, July 5, 2009 at 8:45pm
3.7235 Kcal

## Answer This Question

## Related Questions

- physical science - Lead is a soft, dense metal with a specific heat of 0.028 ...
- Physical Science - lead has specific heat of .028kcal/kgC, melting point of 328 ...
- Physical Science - Lead is a soft, dense metal with a specific heat of 0.117 J/...
- Chemisty - LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL/KGC, A ...
- SCIENCE QUESTION - LEAD IS A SOFT, DENSE METAL WITH A SPECIFIC HEAT OF 0.028KCAL...
- Physics - lead melts at 328 degrees C. lead has a heat of fusion of 2.04X10^4 J/...
- Physics / Heat Transfer - How much heat must be removed from a 200 g block of ...
- physcial science - When 1 kg of ice at 0 degrees Celsius absorbs 80 kilocalories...
- chemistry - How many calories must be supplied to 59 g of ice at −6 C to ...
- chimistry - The molar heat of fusion of lead (Pb) is 1.140 kcal/mol. How much ...

More Related Questions