Three beakers labelled as A, B and C, each containing 25 ml of water, were taken. A small amount of NaOH, anhydrous CuSO4 and NaCl were added to the beakers A, B and C respectively. It was observed that there was an increase in the temperature of the solutions contained in beakers A and B, whereas in the case of beaker C, the temperature of the solution fell. Which one of the following statement(s) is (are) correct?
- In beakers A and B, exothermic process has occurred.
- In beakers A and B, endothermic process has occurred
- In beaker C, exothermic process has occurred
- In beaker C, endothermic process has occurred.
Chemical reaction in beakers A and B gives out heat. Hence, the temperature of the solution increases. Thus, we can call it an exothermic reaction._x000D_In beaker C, heat is absorbed from water instead and hence, the temperature decreases. Thus, we can call it an endothermic process.
Chemical reaction in beakers A and B gives out heat. Hence, the temperature of the solution increases. Thus, we can call it an exothermic reaction._x000D_In beaker C, heat is absorbed from water instead and hence, the temperature decreases. Thus, we can call it an endothermic process.