Homework Help: Chemistry

Posted by Steve on Monday, February 6, 2012 at 3:49pm.

In a large building, oil is used in a steam boiler heating system. The combustion of 1.0 pound of oil provides 2.4*10^7 J.

How many kg of oil are needed to heat 100 kg of water from 22 to 100 degrees C?

How many kg of oil are needed to provide steam from 100 kg of water at 100 degrees C?

Chemistry - DrBob222, Monday, February 6, 2012 at 5:14pm
a. 100 kg H2O from 22 to 100 will require how much energy?
That is mass H2O (in grams) x specific heat H2O (J/g*C) x (100-22) = ?J
oil needed(lbs) = 1 lb x (?J/2.4E7)
Convert lbs oil to kg.

b. Same concept but heat needed is
100,000 g H2O x delta Hvap = heat needed.

Answer this Question

Related Questions

Physics - Given that electricity is priced at constant 13.5 pence per kWh and ...
Physics - A steam engine's boiler completely converts 155 kg of water to ...
Integrated Physics and Chemistry - Matching... Heat engine Heat pump Boiler ...
Thermodynamics - Design Problem- A steam boiler may be thought of as a heat ...
Thermodynamics - Design Problem- A steam boiler may be thought of as a heat ...
Integrated Physics and Chemistry - A thermostat is used for which of the ...
Economics - Suppose the price elasticity of demand for heating oil is 0.2 in the...
chemistry - In industrial plants, what specific type of oil is used as heating ...
Chemistry - In industrial plants, what specific type of oil is used as heating ...
Chemistry Help!! - Propane(C3H8), the major component of LP game, is often used ...

For Further Reading

First Name:
School Subject:
Answer: