Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 1 (Q.No. 15)
15.
In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms-2. Neglecting the heat capacity of agitator, the temperature of water (in °C) is
Discussion:
22 comments Page 2 of 3.
Hadi muhammed said:
4 years ago
Thank you.
Jaykishor kumar yadav said:
6 years ago
Temperatures of heat exchangers depond upon the the flow of steam and pressure.
Selamu Abule said:
6 years ago
@Emeka.
Thanks for explaining.
Thanks for explaining.
Kshema said:
1 decade ago
Please explain
Arun said:
7 years ago
Thanks @Emeka.
Amit said:
8 years ago
Basic Formula Used => n.m.g.h = m.cp.dt.
Shakti Singh said:
9 years ago
The formula is m*g*h = m*cp* (T1 - T2).
Yadav anil said:
10 years ago
Explain answer in detail.
Deepesh said:
1 decade ago
Means potential energy converted in to heat energy .4186 is the specific heat of water, Cp.
Sarang said:
1 decade ago
It is quite simple. In this we have to use first law of thermodynamics i.e. energy neither be created nor destroy it can converted from one form to another form and total quantity remain same.
And for this example refer the Joule's experiment's fig. Then you can understand it clearly.
And for this example refer the Joule's experiment's fig. Then you can understand it clearly.
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