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Svetradugi [14.3K]

2 years ago

5

A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.)

Fill in the missing part of this equation. pa * mm2

1 answer:

Aliun [14]2 years ago

6 0

The question is incomplete, here is the complete question:

A student sets up the following equation to convert a measurement. (The stands for a number the student is going to calculate.) Fill in the missing part of this equation.

$23.Pa.cm^3=?kPa.m^3$

<u>Answer:</u> The measurement after converting is $23\times 10^{-9}kPa.m^3$

<u>Explanation:</u>

We are given:

A quantity having value $23.Pa.cm^3$

To convert this into $kPa.m^3$ , we need to use the conversion factors:

1 kPa = 1000 Pa

$1m^3=10^6cm^3$

Converting the quantity into $kPa.m^3$ , we get:

$\Rightarrow 23.Pa.cm^3\times (\frac{1kPa}{1000Pa})\times (\frac{1m^3}{10^6cm^3})\\\\\Rightarrow 23\times 10^{-9}kPa.m^3$

Hence, the measurement after converting is $23\times 10^{-9}kPa.m^3$

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2 years ago

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Answer:

Option (c) is correct.

Explanation:

According to 2nd law of thermodynamics, every spontaneous process is associated with increase in entropy ( $\Delta S>0$ ).

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2 years ago

A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.7 nm.93.7 nm. What is the final state of the hy

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Answer:

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Explanation:

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λ = 93.7 nm or 93.7 * 10^-9 m

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From;

ΔE = hc/λ

ΔE = 6.63 * 10^-34 * 3* 10^8/93.7 * 10^-9

ΔE = 21 * 10^-19 J

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21 * 10^-19 J = -2.18 * 10^-18 J (1/nf^2 - 1/ni^2)

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2 years ago

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When multiplying numbers, the term with the least significant digits gives how many significant digits will be in the answer. 2.995 has the least with 4 "sig figs", so the answer will have 4 significant digits as well:

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2 years ago

An evaporation–crystallization process of the type described in Example 4.5-2 is used to obtain solid potassium sulfate from an

timofeeve [1]

Answer:

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Explanation:

Material or mass balance can be used to estimate the mass flow rates of all the streams in the diagram shown in the attached file.

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$\frac{M_{3}}{M_{1}}$ = 352.5/220.77 = 1.6

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3 years ago