Question

Why in summer in handpump comes hot water first and after sometime it turns cold ?​

Answer 1

Answer:

Reality is that there is no change in the temperature of underground water but our outer body temperature is slight lower than normal in winter so we feel the same water hot while in summer our outer body temperature is slight high than normal so we feel it cool.

Answer 2

In winter the outside temperature is lower than that of water flowing out of the pump, and therefore , the water feels warm. Whereas in summer, the outside temperature is higher than the water of the pump, and therefore, it feels cold.

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