# Chem URGENT

How much energy (in kilojoules) is released when 13.3g of steam at 114.5∘C is condensed to give liquid water at 67.0∘C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/(K⋅mol) for the liquid and 33.6 J/(K⋅mol) for the vapor.

1. Do this in steps.
1. heat released in lowering steam from 114.5 to steam at 100 c.
q1 = mass steam x specific heat steam x (Tfinal-Tinitial)

q2 = heat released in changing steam at 100 C to liquid H2O at 100 C.
q2 = mass x heat vap

q3 = heat released in moving liquid H2O at 100 C to liquid H2O at 67 C

q3 = mass H2O x specific heat H2O x (Tfinal-Tinitial)

Total q = q1 + q2 + q3
NOTE that mass in in grams and specific heat and heat vap is in kJ/mol or J/mol.

posted by DrBob222
2. By the way you will get faster answers if you don't change screen names.

posted by DrBob222

First Name

## Similar Questions

1. ### Chemistry

How much energy (in kilojoules) is released when 15.2g of steam at 114.5∘C is condensed to give liquid water at 63.5∘C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3
2. ### chemistry

How much energy (in kilojoules) is released when 12.3g of steam at 121.5degree C is condensed to give liquid water at 64.5 degree C? The heat of vaporization of liquid water is 40.67 kj/mol, and the molar heat capacity is 75.3
3. ### Chemistry

How much energy (in kilojoules) is released when 12.8 g of steam at 130.0 C is condensed to give liquid water at 73.5 C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/(K*Mol)for
4. ### chemistry

How much energy (in kilojoules) is released when 12.3 of steam at 121.5 is condensed to give liquid water at 64.5? The heat of vaporization of liquid water is 40.67 , and the molar heat capacity is 75.3 for the liquid and 33.6 for
5. ### chemistry

How much energy (in kilojoules) is released when 12.3g of steam at 121.5 degree C is condensed to give liquid water at 64.5 degree C? The heat of vaporization of liquid water is 40.67kj/mol , and the molar heat capacity is 75.3
6. ### chemistry

How much energy (in kilojoules) is released when 12.3g of steam at 121.5 degree C is condensed to give liquid water at 64.5 degree C? The heat of vaporization of liquid water is 40.67kj/mol , and the molar heat capacity is 75.3
7. ### chemistry

How much energy (in kJ) is released when 16.4 g of steam at 121.5 degrees C is condensed to give liquid water at 60.5 degrees C? The heat of vaporization of liquid water is 40.67 kJ/mol and the molar heat capacity is 75.3
8. ### chem

How much heat (in kJ) is required to warm 10.0 g of ice, initially at -13.0 ∘C, to steam at 109.0 ∘C? The heat capacity of ice is 2.09 J/g⋅∘C and that of steam is 2.01 J/g⋅∘C. The heat capacity
9. ### Chemisty 132

How much energy (in kilojoules) is needed to heat 5.55g of ice from -13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol)
10. ### Chemisty 132

How much energy (in kilojoules) is needed to heat 5.55g of ice from -13.5 ∘ C to 26.5 ∘ C. The heat of fusion of water is 6.01kJ/mol, and the molar heat capacity is 36.6 J/(K⋅mol) for ice and 75.3 J/(K⋅mol)

More Similar Questions