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Chapter 3: Q. 3.87 (page 93)

On a hot day, the beach sand gets hot but the water stays cool. Would you predict that the specific hent of sand is higher or lower than that of water? Explain.

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As a result, the specific heat of sand is lower than that of water.

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Step 1:Given data

Find the sand is higher or lower

specific hent of sand is higher or lower than that of water

02

Step 2:Would you predict that the specific heat of sand is higher or lower than that of water

A substance's specific heat is the amount of heat required to raise the temperature of one gram of that substance by one degree Celsius. $1 ° C$ . The amount of heat given by the sun to sea water and beach sand is the same on a hot sunny day. However, the sand heats up faster than the water. This demonstrates that the amount of heat required to heat the sand is less. As a result, the specific heat of sand is lower than that of water.

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Most popular questions from this chapter

Calculate the heat change at $0 °$ . for each of the following. and indicate whether heat was absorbed/released:

a. calories to freeze $35 g$ of water

h. joules to freeze $275 g$ of water

c. kilocalories to melt $140 g$ of ice

d. kilojoules to melt $5.00 g$ of ice

A $125 g$ piece of metal is heated to $288 ° C$ and dropped into $85.0 g$ of water at $12.0 ° C$ . The metal and water come to the same temperature of $24 ° C$ . What is the specific heat, in $J / g {}^{\circ}C$ , of the metal?

State the temperature on the Celsius thermometer and convert to Fahrenheit. $(3.3)$

Calculate the kilocalories for each of the following:

$(a)$ one cup of popcorn that produces $131 k J$ when burned in a calorimeter

$(b)$ a sample of butter that produces $23.4 k J$ when burned in a calorimeter

A sports trainer applies an ice bag to the back of an injured athlete. Calculate the beat, in kilocalories, that is absorbed if $145 g$ of ice at role="math" localid="1651726770488" $0 . 0^{\circ} C$ is placed in an ice bag, melts, and warms to body temperature of $37 . 0^{\circ} C$ .

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