Q216
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
A.
40.5
B.
34.4
AnswerC.
26.8
D.
25
Answer: Option B
Solution
Answer: Option B
No explanation is given for this question Let's Discuss on Board