Answer:
t = 6179.1 s = 102.9 min = 1.7 h
Explanation:
The energy provided by the resistance heater must be equal to the energy required to boil the water:
E = ΔQ
ηPt = mH
where.
η = efficiency = 84.5 % = 0.845
P = Power = 2.61 KW = 2610 W
t = time = ?
m = mass of water = 6.03 kg
H = Latent heat of vaporization of water = 2.26 x 10⁶ J/kg
Therefore,
(0.845)(2610 W)t = (6.03 kg)(2.26 x 10⁶ J/kg)
![t = \frac{1.362\ x\ 10^7\ J}{2205.45\ W}](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B1.362%5C%20x%5C%2010%5E7%5C%20J%7D%7B2205.45%5C%20W%7D)
<u>t = 6179.1 s = 102.9 min = 1.7 h</u>
Answer:
As we know that every molecule is attached by a strong force .The force required to disassemble the atoms is know as atomic binding force or we can say that the force required to disassemble the electron from atoms is known as binding force.On the other hand the energy require to doing this is known as atomic binding energy.
If the binding force is high then it will become difficult to disassemble thermally as well as mechanically.So we can say that it have direct relationship with materials strength and thermal stability.
Answer:
Electrical faults are also caused due to human errors such as selecting improper rating of equipment or devices, forgetting metallic or electrical conducting parts after servicing or maintenance, switching the circuit while it is under servicing, etc.
Explanation:
Answer:
275 Kelvin
Explanation:
Coefficient of Performance=11
![T_H=\text {Absolute Temperature of high temperature reservoir=300 K}](https://tex.z-dn.net/?f=T_H%3D%5Ctext%20%7BAbsolute%20Temperature%20of%20high%20temperature%20reservoir%3D300%20K%7D)
![T_L=\text {Absolute Temperature of low temperature reservoir}](https://tex.z-dn.net/?f=T_L%3D%5Ctext%20%7BAbsolute%20Temperature%20of%20low%20temperature%20reservoir%7D)
![\text {Coefficient of performance for carnot cooler}\\=\frac {T_L}{T_H-T_L}\\\Rightarrow 11=\frac{T_L}{300-T_L}\\\Rightarrow 11(300-T_L)=T_L\\\Rightarrow 3300-11T_L=T_L\\\Rightarrow 3300=T_L+11T_L\\\Rightarrow 3300=12T_L\\\Rightarrow T_L=\frac {3300}{12}\\\Rightarrow T_L=275\ K\\\Therefore \text{Temperature at which the refrigerator absorbs heat=275 Kelvin}](https://tex.z-dn.net/?f=%5Ctext%20%7BCoefficient%20of%20performance%20for%20carnot%20cooler%7D%5C%5C%3D%5Cfrac%20%7BT_L%7D%7BT_H-T_L%7D%5C%5C%5CRightarrow%2011%3D%5Cfrac%7BT_L%7D%7B300-T_L%7D%5C%5C%5CRightarrow%2011%28300-T_L%29%3DT_L%5C%5C%5CRightarrow%203300-11T_L%3DT_L%5C%5C%5CRightarrow%203300%3DT_L%2B11T_L%5C%5C%5CRightarrow%203300%3D12T_L%5C%5C%5CRightarrow%20T_L%3D%5Cfrac%20%7B3300%7D%7B12%7D%5C%5C%5CRightarrow%20T_L%3D275%5C%20K%5C%5C%5CTherefore%20%5Ctext%7BTemperature%20at%20which%20the%20refrigerator%20absorbs%20heat%3D275%20Kelvin%7D)
Answer:
The blue Prius, because the Mustang arrived almost in the same time. And when you arrive in an intersection at the same time of other vehicle you need yield for the car on your right if the car is on your left you have the right of way.
Explanation: