gc textbook chater 14 heat (id: 0a3e73318)

本题目来源于试卷: gc textbook chater 14 heat，类别为 IB物理学

[问答题]
A British thermal unit (Btu) is a unit of heat i-sa.z7gccry( cm r il3:.whd3n the 56w9sn l 3*ex aux1nldBritish system of units. One Bt5sll nx9uadnx6*w 3 1eu is defined as the heat needed to raise 1 lb of water by 1 F $^{\circ} $ . Show that
1Btu = 0.252kcal=1055J

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