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Anuta_ua [19.1K]

3 years ago

8

In order to quantitatively analyze a chemical equation one must do which of the following?

1 answer:

ycow [4]3 years ago

4 0

Answer:

D - Balance the equation

Explanation:

A balanced chemical equation shows the number of moles, volume, or mass of a compound/molecule that combines with another in order to give some certain products.

To quantitatively follow how reactants combine to form some desired products, one must express the equation in a balanced form so as to be able to carefully measure the amount of matter and the moles involved in a specific reaction. In chemistry, such calculation falls under stoichiometry (stoicheon means atom and metron is measurement).

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What is the pressure of a gas that began at 38 torr, and 500L and is changed to occupy a volume of 677 L?

qwelly [4]

Answer:

P₂ = 28.5 torr

Explanation:

Given data:

Initial pressure = 38 torr

Initial volume = 500 L

Final volume = 677 L

Final pressure = ?

Solution:

P₁V₁ = P₂V₂

P₁ = Initial pressure

V₁ = Initial volume

P₂ = Final pressure

V₂ = Final volume

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P₁V₁ = P₂V₂

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3 years ago

Prandtl number in heat transfer analogues to which dimension less number in mass transfer. a) Schmidt number b) Sherwood number

Cloud [144]

Answer:

a) Schmidt number

Explanation:

Prandtl number in heat transfer is analogues to Schmidt number in mass transfer.

Prandtl number in heat transfer is the ration of momentum diffusivity to the heat diffusivity.

$P_r = \frac{\nu}{\alpha}$

Whereas, Schmidt number in mass transfer is the ratio of momentum diffusivity to the mass diffusivity.

$S_c= \frac{\nu}{\nu_{AB}}$

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