Specific Heat
If the specific heat for gold is 129 J/kg∙K, how much heat energy is needed to raise the temperature of 200 g of gold by 30 K?
Expand Hint
When heat energy is applied to an object, the temperature is impacted by a specific amount. Specific heat is a value that describes the relationship between heat energy and temperature, and is unique for every material.
Hint 2
$$$Q=mc_{p}(\Delta T)$$$
where
$$Q$$
is the heat energy applied to a system,
$$m$$
is the object's mass,
$$c_p$$
is the specific heat (at constant pressure), and
$$\Delta T$$
is the temperature change.
When heat energy is applied to an object, the temperature is impacted by a specific amount. Specific heat is a value that describes the relationship between heat energy and temperature, and is unique for every material.
$$$Q=mc_{p}(\Delta T)$$$
where
$$Q$$
is the heat energy applied to a system,
$$m$$
is the object's mass,
$$c_p$$
is the specific heat (at constant pressure), and
$$\Delta T$$
is the temperature change.
$$$Q=(.2kg)129\frac{J}{kg\cdot K}(30K)=774\:J$$$
774 J
Time Analysis
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