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2 years ago

When water is boiled at a pressure of 2.00 atm, the heat of vaporization is 2.20×106J/kg2.20×10

Physics

1 answer:

Grace [21]2 years ago

5 0

Answer:

Explanation:

a ) When 1 kg water is boiled at constant pressure of 1 atm , its volume increases by following volume

(.824 - .001 )m³

.823 m³

work done by steam = increase in volume x pressure

.823 x 10⁵ J

Heat added

= latent heat of vaporization x mass

= 2260000 J x 1

= 22.6 x 10⁵ J

Increase in internal energy of gas

= heat added - work done by gas

= (22.6 - .823) x 10⁵ J

= 21.777 x 10⁵ J .

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Example: mass = 10kg
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Hope it helped!

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2 years ago

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coldgirl [10]

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A uniform crate with a mass of 22 kg must be moved up along the 15° incline without tipping. The force P is horizontal. Determin

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Answer:

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Explanation:

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It means that the horizontal component of force is given by :

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3 years ago

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