Question 1
An auditorium has dimensions 10 m × 10 m × 60 m. How many moles of air fill this volume at one atmosphere and 0°C?
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2.7 × 102
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2.7 × 104
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2.7 × 103
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2.7 × 105
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2.7 × 106
Question 2
Angela claims that she wears a cylindrical-shaped hollow gold bracelet because it expands less than a solid one with a change in temperature. Clarissa claims that a cylindrical-shaped solid gold bracelet expands less than a hollow one. Which one, if either, is correct?
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Angela, because the bracelet expands outward on its outer surface and inward on its inner surface.
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Clarissa, because the bracelet expands outward on its outer surface and inward on its inner surface.
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Angela, because the inner circumference does not change, but the outer circumference expands.
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Clarissa, because the inner circumference does not change, but the outer circumference expands.
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Neither, because both the inner and outer circumferences increase in length.
Gold Nugget
Molten gold beetle
Early in the twentieth century, when malnutrition was common, companies such as this one advertised
Re-creation of Pheidias’s Huge Gold and Ivory Figure of Athena
Mendel’s Peas Are Shaped by Transposition
Mendel’s Peas Are Shaped by Transposition