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Question
Which temperature segment is chosen when determining the unit of heat? Why?
Solution
While deciding the unit for heat, temperature interval chosen is 14.5 °C to 15.5 °C.
Reason:
When 1 kg of water is heated through 1 °C in various temperature ranges, the amount of heat required to raise temperature by 1 °C varies slightly from range to range. Hence, it is essential to define a specific temperature range while defining a unit of heat.
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