Some Properties of a Certain Glass Are Listed Here

question 79

Multiple Choice

Some properties of a certain glass are listed here:
Density 2300 kg/m³
Specific heat capacity 840 J/kg ∙ °C
Coefficient of thermal expansion 8.5 × 10^-6 (°C) ^-1
Thermal conductivity 0.80 W/m ∙ °C
A glass window pane is 2.7 m high,2.4 m wide,and 9.0 mm thick.The temperature at the inner surface of the glass is
And at the outer surface 4°C.How much heat is lost each hour through the window?

• A)3.1 × 10^{7 J}
• B)3.1 × 10^{4 J}
• C)8.6 × 10^{3 J}
• D)8.6 J
• E)3.1 × 10^{5 J}

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Definitions:

Prematurely

Occurring or done before the usual or proper time; too early.

Developmental Stage

A phase or period in life characterized by specific physiological and psychological features that lead to new and more advanced levels of functioning.

Prenatal Development

The development and growth journey inside the womb from the point of conception to the time of birth.

Zygotic Stage

The earliest developmental stage of an embryo, starting from fertilization until it becomes a blastocyst.