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3 years ago

Good experimental design includes a hypothesis that is

Physics

2 answers:

scZoUnD [109]3 years ago

7 0

Answer: testable and observable.

Explanation:

Experimental design includes the concepts which are directly related to the plan which is required to be followed so as to deduce a reasonable outcome. It must include a hypothesis which should be testable and observable on the basis of application of suitable scientific methodology. A hypothesis is presumed statement related to a particular natural phenomena or event which is required to be proved by implementation of scientific experimentation procedure and direct observation.

Ratling [72]3 years ago

3 0

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Good experimental design includes a hypothesis that is <span>testable and observable.</span>

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A child on a high dive has a mass of 40 kilograms. If the high dive is 10 meters in the air, what is the potential energy? GPE=m

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Explanation:

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xConsider the following reduction potentials: Cu2+ + 2e– Cu E° = 0.339 V Pb2+ + 2e– Pb E° = –0.130 V For a galvanic cell employi

slega [8]

Answer:

Approximately $\rm 90\; kJ$ .

Explanation:

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$\rm Cu^{2+} + Pb \to Cu + Pb^{2+}$ .

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The maximum amount of electrical energy possible (under standard conditions) is equal to the free energy of this reaction:

$\Delta G^{\circ} = n \cdot F \cdot E^{\circ} (\text{cell})$ ,

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$n$ is the number moles of electrons transferred for each mole of the reaction. In this case the value of $n$ is $2$ as in the half-reactions.
$F$ is Faraday's Constant (approximately $96485.33212\; \rm C \cdot mol^{-1}$ .)

$\begin{aligned}\Delta G^{\circ} &= n \cdot F \cdot E^{\circ} (\text{cell})\cr &= 2\times 96485.33212 \times (0.339 - (-0.130)) \cr &\approx 9.0 \times 10^{4} \; \rm J \cr &= 90\; \rm kJ\end{aligned}$ .

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