Posted by **Erica** on Tuesday, November 21, 2006 at 4:37pm.

Spent steam from an electric generating plant leaves the turbines at 120.0 degrees Celsius and is cooled to 90.0 degrees Celsuius liquid water by water from a cooling tower in a heat exchanger. How much heat is removed by the cooling tower water for each kilogram of spent steam?

q1 = heat removed by moving steam from 120.0 degrees C to steam @ 100.0 degrees C.

q1 = mass x specific steam steam x (Tf-Ti).

q2 = heat removed by condensing steam @ 100.0 degrees C to liquid water at 100.0 degrees C.

q2 = mass x heat of condensation (same as heat of vaporization but different sign).

q3 = heat removed by moving liquid water from 100.0 degrees C to 90.0 degrees C.

Total heat removed is q1 + q2 + q3.

The problem doesn't exactly specify a mass but it asks for heat per kg so I would use 1 kg or 1000g for mass in each of the above equations.

## Answer This Question

## Related Questions

- science - Spent steam from an electric generating plant leaves the turbines at ...
- phusical science - spent steam from a electric generating plant leaves the ...
- science - spent steam from an electric generating plant leaves the turbines at ...
- PHYSICS - At a nuclear power plant water at 8°c from a lake is used in a heat ...
- physics - At a nuclear power plant water at 8°c from a lake is used in a heat ...
- physics - At a nuclear power plant water at 8°c from a lake is used in a heat ...
- PHYSICS help please!!!!!!!!!! - At a nuclear power plant water at 8°c from a ...
- Physics 20 - 1. How much heat energy is required to change 500 grams of water at...
- Physics - Please Help! I am having difficulties grasping these concepts. Explain...
- Physics - How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to ...

More Related Questions