A 4.0-kg aluminum block is originally at 10°C.If 160 kJ of heat is added to the block,what is its final temperature? The specific heat capacity of aluminum is 910 J/kg ∙ K.
A)24°C
B)34°C
C)44°C
D)54°C

Question

Quizplus · Accepted Answer

The heat added (Q) is 160,000 J. Using the formula Q = mcΔT, where m is mass (4 kg), c is specific heat capacity (910 J/kg∙K), and ΔT is the change in temperature, we solve for ΔT: ΔT = Q / (mc) = 160,000 / (4 * 910) = 44°C. The initial temperature is 10°C, so the final temperature is 10°C + 44°C = 54°C.

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