when 20ml of a strong acid is mixed to 20ml of strong alkali, the temp. rises by 10degree.
what wiould be the temp. rise if 200ml of each liquid are mixed??
1)5degree
2)10degree
3)0.5
4)0.10degree

Dear student
Please find the solution to the asked query:

$$\begin{gathered} Heat evolved in first case =40\times 5 =200cal \\ Heat evolved in second case = 10 times \\ because the amounts taken are 10 times \\ =10\times 200 =2000cal \\ thus 2000cal =400\times ∆t \\ thus ∆t =5^{o}C \end{gathered}$$

Hence option 1 is the correct answer.

Hope this information will clear your doubts regarding the topic. If you have any other doubts please ask here on the forum and our experts will try to solve them as soon as possible.
 
Regards