Take three beakers label them as a,b,c put a tablespoon of curd in all the three beakers. In beaker a, pour lukewarm milk in beaker b, boiled milk in beaker c, very cold milk stir all the containers well record the observations in the table given below beaker a beaker b beaker c
Answers
Answered by
0
Answer:
Concept: When heat is released (Exothermic process) surrounding gets warm means temperature rises.
When heat is absorbed (Endothermic process) surrounding gets cold means temperature falls.
In beaker A:
NaOH+H
2
O→Na
+
+OH
−
+H
2
O+heat
In beaker B:
CuSO
4
(s)+5H
2
O(l)→CuSO
4
.5H
2
O(s)+heat
Therfore in both A and B exothermic reactions are taking place resulting in rise in temperature.
On the other hand in beaker C, an endothermic reaction is taking place as heat is being absorbed, resulting in a decrease in temperature.
NaCl+H
2
O+heat→Na
+
+Cl
−
+H
2
O
Explanation:
Similar questions