Answered

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25. Heat is supplied at the same rate to two metals at room temperature. Which metal will reach 20° above room temperature first?Select one:a. Iron will reach 20° above room temperature first because it has a lower specific heat.b. Silver will reach 20° above room temperature first because it has a higher specific heat.c. They will reach room temperature in the same amount of time.d. It depends on the room temperature.

25 Heat Is Supplied At The Same Rate To Two Metals At Room Temperature Which Metal Will Reach 20 Above Room Temperature FirstSelect Onea Iron Will Reach 20 Abov class=

Sagot :

The specific heat capacity is defined as the thermal energy required to raise the temperature of a specific mass of a material a specific amount. The one with the highest specific heat capacity would have the smallest rise in temperature.

Since:

[tex]\begin{gathered} ci=Specific_{\text{ }}heat_{\text{ }}of_{\text{ }}iron=0.1 \\ ca=Specific_{\text{ }}heat_{\text{ }}of_{\text{ }}aluminum=0.2 \\ ca>ci \end{gathered}[/tex]

We can conclude that the answer is:

a. Iron will reach 20° above room temperature first because it has a lower specific heat.

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