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2 years ago

All welding processes that take place without melting of the work pieces. a)- True b)-False

Engineering

1 answer:

Advocard [28]2 years ago

6 0

Answer: False

Explanation: Welding process is the joining process of two metals in which they are melted using the heat and then cooling it down and fuse them.Base metal is the melted and then some filler substance is added in the metal and then kept for the fusion process so that joining can be done. Therefore like fusion welding includes the process of melting work piece , so the statement in the question is false.

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Answer:

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3 years ago

In order to fill a tank of 1000 liter volume to a pressure of 10 atm at 298K, an 11.5Kg of the gas is required. How many moles o

lesya [120]

Answer:

The molecular weight will be "28.12 g/mol".

Explanation:

The given values are:

Pressure,

P = 10 atm

= $10\times 101325 \ Pa$

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Temperature,

T = 298 K

Mass,

m = 11.5 Kg

Volume,

V = 1000 r

= $1 \ m^3$

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Now,

By using the ideal gas law, we get

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By substituting the values, we get

$=\frac{1013250\times 1}{8.3145\times 298}$

$=408.94 \ moles$

As we know,

⇒ $Moles(n)=\frac{Mass(m)}{Molecular \ weight(MW)}$

or,

⇒ $MW=\frac{m}{n}$

$=\frac{11.5}{408.94}$

$=0.02812 \ Kg/mol$

$=28.12 \ g/mol$

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2 years ago

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Answer:

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Explanation:

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