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ExtremeBDS [4]
3 years ago
14

How many points do you need to define for the rectangle

Engineering
1 answer:
Rudik [331]3 years ago
3 0

Answer:

Two points

Explanation:

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A rigid, sealed tank initially contains 2000 kg of water at 30 °C and atmospheric pressure. Determine: a) the volume of the tank
Bad White [126]

Given:

mass of water, m = 2000 kg

temperature, T = 30^{\circ}C = 303 K

extacted mass of water = 100 kg

Atmospheric pressure, P = 101.325 kPa

Solution:

a) Using Ideal gas equation:

PV = m\bar{R}T                                        (1)

where,

V = volume

m = mass of water

P = atmospheric pressure

\bar{R} = \frac{R}{M}

R= Rydberg's constant = 8.314 KJ/K

M = molar mass of water = 18 g/ mol

Now, using eqn (1):

V = \frac{m\bar{R}T}{P}

V = \frac{2000\times \frac{8.314}{18}\times 303}{101.325}

V = 2762.44 m^{3}

Therefore, the volume of the tank is V = 2762.44 m^{3}

b) After extracting 100 kg of water, amount of water left, m' = m - 100

m' = 2000 - 100 = 1900 kg

The remaining water reaches thermal equilibrium with surrounding temperature at T' = 30^{\circ}C = 303 K

At equilibrium, volume remain same

So,

P'V = m'\bar{R}T'

P' = \frac{1900\times \frac{8.314}{18}\times 303}{2762.44}      

Therefore, the final pressure is P' = 96.258 kPa

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3 years ago
Which option explains why Tyler is impressed in the following scenario?
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Answer:

Its B).  The efficiency rating of the dishwasher was significantly improved, meaning it would save him money and be more eco-friendly.

Explanation:

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8 0
2 years ago
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Answer:

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Explanation:

no

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A distillation column is initially designed to separate a mixture of toluene and xylene at around ambient temperature (say, 100°
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Purchase cost= 87056

Bar module cost= 292725

Explanation:

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3 years ago
Nơi nào có điện tích thì xung quanh điện tích đó có :
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Explanation:

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