100 Grams of Molten Lead (600°C) Is Used to Make

question 1

Multiple Choice

100 grams of molten lead (600°C) is used to make musket balls. If the lead shot is allowed to cool to room temperature (21°C) , what is the change in entropy (in J/K) of the lead? (For the specific heat of molten and solid lead use 1.29 J/g⋅°C; the latent heat of fusion and the melting point of lead are 2.45 × 10⁴ J/kg and 327°C.)

• A) −145
• B) −252
• C) −302
• D) −429
• E) −100

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Definitions:

Multiple Intelligences

A theory proposed by Howard Gardner, suggesting that humans have several different ways of processing information and these ways are relatively independent of one another.

Visual Spatial Reasoning

The ability to mentally manipulate 2-dimensional and 3-dimensional figures and to understand spatial relationships in order to solve problems.

Wechsler Intelligence Scale

A standardized test designed to measure human intelligence in various dimensions.

Spatial Cues

Environmental or sensory indicators that provide information about location, distance, and orientation in space.