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Andre45 [30]
3 years ago
13

What is the theoretical density in g/cm3 for Lead [Pb]?

Engineering
1 answer:
Sliva [168]3 years ago
6 0

Answer:

11.34 g/cm3

Explanation:

At room temperature, where it is in a solid state, it is 11.34 \frac{g}{cm^{3}}. While at melting temperature, at 327.5 ° C, it is 10.66 \frac{g}{cm^{3}}

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Answer:

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Semiconductor pn junction diode and zener diode quiz questions
suter [353]

1.) A semiconductor is a device whose conductivity lies between the conductivity of the conductors and the insulators.

2.) A Zener diode is a semiconductor device made of silicon that allows current to flow in both directions.

<h3>What is a semiconductor?</h3>

A semiconductor is a device whose conductivity lies between the conductivity of the conductors and the insulators.

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2 years ago
Atmospheric air at a pressure of 1 atm and dry bulb temperature of 28 C has a wet-bulb temperature of 20 C.
IrinaK [193]

Answer:

a) \phi = 48\%, b) \omega = 0.012\,\frac{kg\,H_{2}O}{kg\,Air}, c) h = 58\,\frac{kJ}{kg\,Air}, d) T = 17^{\textdegree}C, e) P_{v} = 1.831\,kPa

Explanation:

a) The relative humidity is given by the intersection of the dry bulb and wet bulb temperatures:

\phi = 48\%

b) The humidity ratio is:

\omega = 0.012\,\frac{kg\,H_{2}O}{kg\,Air}

c) The enthalpy is:

h = 58\,\frac{kJ}{kg\,Air}

d) The dew-point temperature is:

T = 17^{\textdegree}C

e) The water vapor pressure is the product of the relative humidity and the saturation pressure evaluated at dry bulb temperature:

P_{v} = \phi \cdot P_{sat}

P_{v} = 0.48\cdot (3.816\,kPa)

P_{v} = 1.831\,kPa

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3 years ago
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Explanation:

a gas in a rigid container has a pressure of 632 torrs and a temperature of 45 celsius. The pressure has increased to 842 torrs. What is the new temperature of the gas

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