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Chemistry, 16.02.2021 03:10 sandrafina2004

C. Tareas de la semana. Analiza (100%)

1. La longitud de un puente es 100 m cuando la

temperatura es 20 °C. ¿En cuánto aumenta su

longitud en un día de verano en que la

temperatura es 40 °C (αpuente = 2 x 10-4

/°C)?

2. Se tiene un círculo metálico de radio 1 cm y β =

2,02 x 10-4

/°C. ¿En cuántos °C se debe

elevar la temperatura, de tal modo que el

nuevo radio del círculo sea igual a 1.02 cm?

3. Un beaker o vaso de precipitado contiene 1000

cm3 de mercurio lleno hasta el borde. Si se

incrementa la temperatura en 100 °C y el beaker

alcanza un volumen de 1 009 cm3

, ¿cuánto de

mercurio se derrama (αHg = 6 X 10-5

/°C)?

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Answers: 2

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