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Lady_Fox [76]
3 years ago
14

Calculate how much heat is absorbed by a sample that weighs 12 kilograms, has a specific heat of 0.231 kg/CJ, and is heated from

45 K to 80 K.
PLEASE ANSWER 20 POINTS
Chemistry
1 answer:
Andrei [34K]3 years ago
4 0

Answer:

97 J

Explanation:

Step 1: Given data

  • Mass of the sample (m): 12 kg
  • Specific heat capacity (c): 0.231 J/kg.°C (this can also be expressed as 0.231 J/kg.K)
  • Initial temperature: 45 K
  • Final temperature: 80 K

Step 2: Calculate the temperature change

ΔT = 80 K - 45 K = 35 K

Step 3: Calculate the heat required (Q)

We will use the following expression.

Q = c × m × ΔT

Q = 0.231 J/kg.K × 12 kg × 35 K = 97 J

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Answer:

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Hope it helps!

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Answer:

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Explanation:

To solve this problem you need to use conversion factors to work with the same units.

First you should convert 32.3mm to miles:

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Then you should divide the total distance between the length of a paper clip in miles, so:

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3 years ago
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7 0
3 years ago
Read 2 more answers
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ki77a [65]

Answer:

Organic compounds can be synthesized in a laboratory setting

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Explanation:

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The idea that organic compounds can only be found in living organisms has been proven wrong by the synthesis of urea in the laboratory.

Organic chemistry studies compounds of carbons with the exception of oxides, carbides and carbonates.

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3 0
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Please help me answer this I will be very grateful if so :)
dimaraw [331]

The molecules in system #2 have a higher kinetic energy because they are at a higher temperature than molecules in system#1.

<h3>Heating of water molecules</h3>

Temperature is defined as a measure of the average kinetic energy of the molecules of a body. The higher the temperature of a body, the higher the kinetic energy of the molecules of the body.

In both systems, we have water molecules that have the same formula H2O. However, the molecules in system #2 have a higher kinetic energy because they are at a higher temperature than molecules in system#1.

Learn more about kinetic energy of molecules: brainly.com/question/2731193

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3 years ago
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