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3 years ago

15

using the two transistor analogy to explain what happens when an SCR is supplied with some gate current.

1 answer:

madam [21]3 years ago

6 0

Answer: g

Explanation:

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4 years ago

A spring-loaded piston-cylinder contains 1 kg of carbon dioxide. This system is heated from 104 kPa and 25 °C to 1,068 kPa and 3

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Q = -68.859 kJ

Explanation:

given details

mass $co_2 = 1 kg$

initial pressure P_1 = 104 kPa

Temperature T_1 = 25 Degree C = 25+ 273 K = 298 K

final pressure P_2 = 1068 kPa

Temperature T_2 = 311 Degree C = 311+ 273 K = 584 K

we know that

molecular mass of $co_2 = 44$

R = 8.314/44 = 0.189 kJ/kg K

c_v = 0.657 kJ/kgK

from ideal gas equation

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$V_1 = \frac{m RT_1}{P_1}$

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$V_1 = 0.5415 m3$

$V_2 = \frac{m RT_2}{P_2}$

$=\frac{1*0.189*584}{1068}$

$V_1 = 0.1033 m3$

WORK DONE

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w = 586*(0.1033 -0.514)

W =256.76 kJ

INTERNAL ENERGY IS

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$\Delta U =187.902 kJ$

HEAT TRANSFER

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