Temperature change (no phase change) The amount of heat Q needed to increase the temperature of a mass m from T 1 to T 2 is proportional to the temperature change ΔT = T 2 –T 1: c is the specific heat of the material, and depends on the material. Units: J.kg–1.K–1 KJF §17.5 QmcT=Δ
Physical and Chemical Changes Part A Can you recognize the chemical and physical changes that happen all around us? If you change the way something looks, but haven't made a new substance, a physical change (P) has occurred. If the substance has been changes into another substance, a...
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