Gloves are often worn to protect the hands from being burned when they come in
contact with very hot or very cold objects. Gloves are often made of cotton or
wool, but many of the newer heat-resistant gloves are made of silicon rubber.
The specific heats of these materials are listed below:
$$
\begin{array}{|l|c|}
\hline \text { Material } & \text { Specific heat }\left(\mathbf{J} /
\mathrm{g}^{\circ} \mathbf{C}\right) \\
\hline \text { wool felt } & 1.38 \\
\hline \text { cotton } & 1.33 \\
\hline \text { paper } & 1.33 \\
\hline \text { rubber } & 3.65 \\
\hline \text { silicon rubber } & 1.46 \\
\hline
\end{array}
$$
(a) If a glove with a mass of \(99.3\) grams composed of cotton increases in
temperature by \(15.3^{\circ} \mathrm{F}\), how much energy was absorbed by the
glove?
(b) A glove with a mass of \(86.2\) grams increases in temperature by
\(25.9^{\circ} \mathrm{F}\) when it absorbs \(1.71 \mathrm{~kJ}\) of energy.
Calculate the specific heat of the glove and predict its composition.
(c) If a glove with a mass of \(50.0\) grams needs to absorb \(1.65 \mathrm{~kJ}\)
of energy, how much will the temperature of the glove increase for each of the
materials listed above?
(d) Which is the best material for a heat-resistant glove?
(e) If you were designing a heat-resistant glove, what kind of specific heat
would you look for?
