What’re the answers?

Chemistry

1 answer:

nikdorinn [45]3 years ago

3 0

7. A conclusion is an educated guess,
or, prediction, about what will happen after the experiment.

8. In observation we use all five senses to gather information.

9. In result we analyze and summarize and ask if the hypothesis was correct.

10. Something that changes or varies in an experiment is called variable.

Ans:
Conclusion
Observation
Results
Variable

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Volgvan

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A gas that was cooled to 200 Kelvin has a volume of 65.8 L. If its initial volume was 132.4 L, what was its initial temperature?

Mandarinka [93]

Answer:

Initial temperature, T1 = 99.4 Kelvin

Explanation:

Given the following data;

Initial volume, V1 = 65.8 Litres
Final temperature, T2 = 200 Kelvin
Final volume, V2 = 132.4 Litres

To find the initial temperature (T1), we would use Charles' law;

Charles states that when the pressure of an ideal gas is kept constant, the volume of the gas is directly proportional to the absolute temperature of the gas.

Mathematically, Charles' law is given by the formula;

$\frac {V}{T} = K$