Answers

The Brainliest Answer!
2015-04-12T02:05:32+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
The room temperature = 5 ⁰C

The air in the room and the walls and other objects will be heated up taking the heat from the hot water in the tank.  The temperature of the water in the tank comes down to 5°C.

   heat liberated =  mass * specific heat capacity * temperature difference
                       = 0.5 m³ * 1000 kg/m³  * 4.18 kJ/°C/kg  * (20° - 5°C)
                   = 31, 350 kJ

2 5 2