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andriy [413]
3 years ago
6

INTEGRATED SCIENCE-8th grade science Please help report cards are due for me at dec.18

Physics
1 answer:
serious [3.7K]3 years ago
7 0

Answer:

Our drinking water comes from lakes, rivers and groundwater. For most Americans, the water then flows from intake points to a treatment plant, a storage tank, and then to our houses through various pipe systems. A typical water treatment process.

Explanation:

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You make tea with 0.50 kg of 85.0°C water and let it cool to room temperature 120.0°C2.
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Answer:

Explanation:

a ) Entropy change dS = dQ/T

= mcdT /T

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.5 X 4200 ln 358/ 293

= - 417.6 J/K

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= 136500 J

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= + 465.87 J/K

Entropy change will be positive  as heat is gained  by the system .

Total change in the entropy of the system (tea + air )

= +465.87 - 417.6

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5 0
3 years ago
What is the mass of 2.00 L of pure water?
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In order to determine the mass of a given volume, it is important to know the density of the substance. <span>Density is a physical property of a substance that represents the mass of that substance per unit volume. For water, we can assume 1000 g/ L. Therefore, the mass is 1000 g/L ( 2.00 L ) = 2000 g.</span>
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