Answered

Discover a wealth of knowledge at Westonci.ca, where experts provide answers to your most pressing questions. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.

Use the specific heat values to answer the following question.

Which of the following has the smallest heat capacity?

\begin{tabular}{|r|r|}
\hline
Substance & [tex]$C_{p} \left( J / g \cdot{ }^{\circ} C \right)$[/tex] \\
\hline
[tex]$H_2O (l)$[/tex] & 4.18 \\
\hline
[tex]$H_2O (s)$[/tex] & 2.03 \\
\hline
[tex]$H_2O (g)$[/tex] & 2.08 \\
\hline
[tex]$Fe (s)$[/tex] & 0.450 \\
\hline
[tex]$Al (s)$[/tex] & 0.897 \\
\hline
[tex]$Cu (s)$[/tex] & 0.385 \\
\hline
[tex]$Sn (s)$[/tex] & 0.227 \\
\hline
[tex]$Pb (s)$[/tex] & 0.129 \\
\hline
[tex]$Au (s)$[/tex] & 0.129 \\
\hline
[tex]$Hg (l)$[/tex] & 0.140 \\
\hline
\end{tabular}

Sagot :

GinnyAnswer
To determine which substance has the smallest specific heat capacity, we need to compare the given specific heat values for each substance.

Let's list the specific heat capacities:
1. [tex]\(H_2O (l)\)[/tex]: 4.18 [tex]\(J/(g \cdot °C)\)[/tex]
2. [tex]\(H_2O (s)\)[/tex]: 2.03 [tex]\(J/(g \cdot °C)\)[/tex]
3. [tex]\(H_2O (g)\)[/tex]: 2.08 [tex]\(J/(g \cdot °C)\)[/tex]
4. [tex]\(Fe (s)\)[/tex]: 0.450 [tex]\(J/(g \cdot °C)\)[/tex]
5. [tex]\(Al (s)\)[/tex]: 0.897 [tex]\(J/(g \cdot °C)\)[/tex]
6. [tex]\(Cu (s)\)[/tex]: 0.385 [tex]\(J/(g \cdot °C)\)[/tex]
7. [tex]\(Sn (s)\)[/tex]: 0.227 [tex]\(J/(g \cdot °C)\)[/tex]
8. [tex]\(Pb (s)\)[/tex]: 0.129 [tex]\(J/(g \cdot °C)\)[/tex]
9. [tex]\(Au (s)\)[/tex]: 0.129 [tex]\(J/(g \cdot °C)\)[/tex]
10. [tex]\(Hg (l)\)[/tex]: 0.140 [tex]\(J/(g \cdot °C)\)[/tex]

Next, identify the smallest value among these specific heats:

- [tex]\(0.129\)[/tex] [tex]\(J/(g \cdot °C)\)[/tex]

We observe that the specific heat capacity value of 0.129 [tex]\(J/(g \cdot °C)\)[/tex] is shared by two substances:
- [tex]\(Pb (s)\)[/tex] (Lead solid)
- [tex]\(Au (s)\)[/tex] (Gold solid)

Therefore, the substances with the smallest specific heat capacity are:
[tex]\[ \boxed{Pb (s) \, \text{and} \, Au (s)} \][/tex]
Thank you for trusting us with your questions. We're here to help you find accurate answers quickly and efficiently. We hope you found what you were looking for. Feel free to revisit us for more answers and updated information. Get the answers you need at Westonci.ca. Stay informed by returning for our latest expert advice.