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3 years ago

12

By what length will a slab of concrete that is originally 18 m long contract when the temperature drops from 24°C to -16°C? The

coefficient of linear thermal expansion for this concrete is 1.0 × 10-5 C-1.

1 answer:

RUDIKE [14]3 years ago

4 0

Explanation:

According to Thermal Expansion of solids:

$dl = \alpha \times l \times dt$

$dl = {10}^{ - 5} \times 18 \times 40$

$dl = 7.2 \times {10}^{ - 3}$

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