In a nuclear power plant, the temperature of the water in the reactor is above 100°C because of what?

Physics

1 answer:

SVETLANKA909090 [29]3 years ago

8 0

Answer:

The temperature of the water increases because the nuclear reactor heats it producing steam

Explanation:

The nuclear power plants are usually defined as those thermal plants where the nuclear reactors are used in order to generate heat that eventually leads to the rotating of the turbines and produces electricity. Here the nuclear reactor heats the water, and it increases above a temperature of 100°C, where this heat energy plays a key role in the entire process. It is an efficient method as it does not lead to the emission of any green house gases that are harmful to the environment.

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how much heat in kcal must be added to 0.5kg of water at room temperature (20°C) to raise its temperature to 50°C?

Katen [24]

We know that the energy required to raise the temperature of a substance is the product of that substance's mass, specific heat capacity and the change in temperature. Mathematically:
Q = m * Cp * delta(T)
The Cp of water in Kcal/(kg*K) or Kcal/(kg*C) is 1. (Per unit Celsius and per unit Kelvin are interchangeable because one degree change in Celsius is equal to one degree change in Kelvin)
Using the formula,
Q = 0.5 * 1 * (50-20)
Q = 15 Kcal

7 0

3 years ago

An electric motor is used to hoist building supplies from the ground to the roof of a building. How much work can the motor do i

Alexeev081 [22]

Answer:

<u>18000 J</u> is the work can do by the motor.

Explanation:

If an electric motor works for 12 seconds and the power output is 1.5 KW = 1500 Watts we need to find how much work can an electric motor does.

We know that,

“Power” is defined as the “rate” of doing “work”, the “energy” transferred or converted per unit time. Mathematically, $\text { power }=\frac{\text {work}}{\text { time }}$