A) \[58{}^\circ C\]
B) \[68{}^\circ C\]
C) \[73{}^\circ C\]
D) \[78{}^\circ C\]
Correct Answer: B
Solution :
Heat lost by hot water = Heat gained by cold water in + Heat absorbed by beaker |
\[\Rightarrow 440\left( 92-\theta \right)=200\times \left( \theta -20 \right)+20\times \left( \theta -20 \right)\] |
\[\Rightarrow \text{ }\!\!\theta\!\!\text{ = 68}{}^\circ \text{C}\] |
You need to login to perform this action.
You will be redirected in
3 sec