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3 years ago

Which term best describes the rate at which glacial erosion takes place

Chemistry

2 answers:

rodikova [14]3 years ago

8 0

Gacial erosion is the process by which a gacial flows over the land,picking up rocks.

olga55 [171]3 years ago

4 0

Glacial erosion is the process by which a glacial flows over the land, picking up rocks.

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bogdanovich [222]

Answer:

Try using Ptable or chemicalaid

Explanation:

Ptable is a great website that shows you a dynamic periodic table. It can show you which elements are Halogens, Alkali metals, transition metals, noble gases, and etc!

Chemicalaid is a nice website to find out more information about specific elements, it also lists every element on the periodic table.

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3 years ago

A gene which does not produce its effect when an opposite dominant gene is present is called a(n) ________ gene

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A gene which does not produce its effect when an opposite dominant gene is present is called an Hybrid.

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3 years ago

Read 2 more answers

The coefficient of thermal expansion α = (1/V)(∂V/∂T)p. Using the equation of state, compute the value of α for an ideal gas. Th

andreyandreev [35.5K]

Answer:

The coefficient of thermal expansion α is

$\alpha = \frac{1}{T}$

The coefficient of compressibility

$\beta = \frac{1}{P}$

Now considering $(\frac{ \delta P }{\delta T} )V$

From equation (1) we have that

$\frac{ \delta P}{\delta T} = \frac{n R }{V}$

From ideal equation

$nR = \frac{PV}{T}$

$\frac{\delta P}{\delta T} = \frac{PV}{TV}$

=> $\frac{\delta P}{\delta T} = \frac{P}{T}$

=> $\frac{\delta P}{\delta T} = \frac{\alpha }{\beta}$

Explanation:

From the question we are told that

The coefficient of thermal expansion is $\alpha = \frac{1}{V} * (\frac{\delta V}{ \delta P}) P$

The coefficient of compressibility is $\beta = - (\frac{1}{V} ) * (\frac{\delta V}{ \delta P} ) T$

Generally the ideal gas is mathematically represented as

$PV = nRT$

=> $V = \frac{nRT}{P} --- (1)$

differentiating both side with respect to T at constant P

$\frac{\delta V}{\delta T } = \frac{ n R }{P}$

substituting the equation above into $\alpha$

$\alpha = \frac{1}{V} * ( \frac{ n R }{P}) P$

$\alpha = \frac{nR}{PV}$

Recall from ideal gas equation $T = \frac{PV}{nR}$

$\alpha = \frac{1}{T}$

Now differentiate equation (1) above with respect to P at constant T

$\frac{\delta V}{ \delta P} = -\frac{nRT}{P^2}$

substituting the above equation into equation of $\beta$

$\beta = - (\frac{1}{V} ) * (-\frac{nRT}{P^2} ) T$

$\beta =\frac{ (\frac{n RT}{PV} )}{P}$

Recall from ideal gas equation that

$\frac{PV}{nRT} = 1$

$\beta = \frac{1}{P}$

Now considering $(\frac{ \delta P }{\delta T} )V$

From equation (1) we have that

$\frac{ \delta P}{\delta T} = \frac{n R }{V}$

From ideal equation

$nR = \frac{PV}{T}$

$\frac{\delta P}{\delta T} = \frac{PV}{TV}$

=> $\frac{\delta P}{\delta T} = \frac{P}{T}$

=> $\frac{\delta P}{\delta T} = \frac{\alpha }{\beta}$

5 0

3 years ago

If the pH value was 3.6, what is the [H+]?<br> 2.5 x 10-4<br> 4.0 x 103

Mazyrski [523]

The formula here is:
pH = -log[H+]
3.6 = -log[H+]
[H+] = 2.51 x 10⁻⁴ mol / Liter

The first option is correct.

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3 years ago

Se llena un recipiente con el mismo número de moles de oxígeno y dióxido de carbono. ¿Cuál de las siguientes proposiciones es la

Ronch [10]

Answer:

D. Las moléculas de CO2 tienen la misma velocidad promedio que las moléculas de O2. es la respuesta correcta

Explanation:

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3 years ago