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3 years ago

A cold coke bottle is on the pan of a balance and is left open. What happens to its weight?

Physics

2 answers:

Arlecino [84]3 years ago

3 0

Answer:

It's weight would decrease over time.

Explanation:

The cold coke is going to stabilise in the room temperature. This causes the coke to heat up to room temperature. When the coke heats up, some molecules acquire enough kinetic energy that the evaporate. The evaporation of the molecules causes a decrease in weight.

Hope it helped!

Tasya [4]3 years ago

3 0

Answer:

it's weight will decree over time

Explanation:

because the ice will tern to winter than it will evaporate

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Answer:

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Explanation:

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3 years ago

What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a

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Complete Question

A certain refrigerator, operating between temperatures of -8.00°C and +23.2°C, can be approximated as a Carnot refrigerator.

What is the refrigerator's coefficient of performance? COP

(b) What If? What would be the coefficient of performance if the refrigerator (operating between the same temperatures) was instead used as a heat pump? COP

Answer:

$COP = 8.49$

$COP_1 = 9.49$

Explanation:

From the question we are told that

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The upper operation temperature of the refrigerator is $T_2 = 23.2 ^oC = 296.2 \ K$

Generally the refrigerators coefficient of performance is mathematically represented as

$COP = \frac{T_1}{T_2 - T_1 }$

=> $COP = \frac{265}{296.2 - 265 }$

=> $COP = 8.49$

Generally if a refrigerator (operating between the same temperatures) was instead used as a heat pump , the coefficient of performance is mathematically represented as

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A cold coke bottle is on the pan of a balance and is left open. What happens to its weight?​

A cold coke bottle is on the pan of a balance and is left open. What happens to its weight?