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1 year ago

si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?

Chemistry

1 answer:

rjkz [21]1 year ago

8 0

Si el calor fuese un fluido no se agotaría, solamente cambiaría su forma o localización.

<h3>¿Qué ocurre cuando dos objetos con diferente temperatura están en contacto?</h3>

Cuando dos objetos de diferente temperatura están en contacto el calor fluye del objeto con mayor temperatura o más caliente, al objeto con menor temperatura o más frío. Esto ocurre hasta que ambos objetos alcanzan la misma temperatura.

<h3>¿Qué sucede con el calor?</h3>

El calor o energía termina se disipa hacia el entorno o la atmosfera cuando un cuerpo se enfría o hacia otro cuerpo si hay transferencia de calor, sin embargo, el calor no desaparece debido a la ley de la conservación de la energía y materia.

<h3>¿Qué sucedería si el calor fuera un fluido?</h3>

Si el calor fuera un fluido este fluido no desaparecería ni se agotaría, solamente se podría disipar a la atmósfera o ambiente.

Aprenda más sobre calor en: brainly.com/question/15890992

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In the reaction H2CO3 (aq) + 2NH3 (aq) = 2NH4^+ (aq) + CO3 2- (aq), how many electrons are transferred?

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Thus this is simple acid base reaction and not redox

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2 years ago

Which statement accurate describes plate tectonics?

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2 years ago

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Please help me, act fast

monitta

Answer:

10g of Pb.

Explanation:

To know which answer is correct, let us calculate the change in the temperature of each substance. This is illustrated below:

For water:

Mass (M) = 10g

Specific heat capacity (C) = 4.18J/g°C

Change in temperature (ΔT) = ..?

Heat (Q) = 100J

Q = MCΔT

Divide both side by MC

ΔT = Q/MC

ΔT = 100 / (10 x 4.18)

ΔT = 2.4°C

Therefore, the change in the temperature of water is 2.4°C

For Ag:

Mass (M) = 10g

Specific heat capacity (C) = 0.235J/g°C

Change in temperature (ΔT) = ..?

Heat (Q) = 100J

Q = MCΔT

Divide both side by MC

ΔT = Q/MC

ΔT = 100 / (10 x 0.235)

ΔT = 42.6°C

Therefore, the change in the temperature of Ag is 42.6°C

For Ca:

Mass (M) = 10g

Specific heat capacity (C) = 0.650J/g°C

Change in temperature (ΔT) = ..?

Heat (Q) = 100J

Q = MCΔT

Divide both side by MC

ΔT = Q/MC

ΔT = 100 / (10 x 0.650)

ΔT = 15.4°C

Therefore, the change in the temperature of Ca is 15.4°C

For Fe:

Mass (M) = 10g

Specific heat capacity (C) = 0.449J/g°C

Change in temperature (ΔT) = ..?

Heat (Q) = 100J

Q = MCΔT

Divide both side by MC

ΔT = Q/MC

ΔT = 100 / (10 x 0.449)

ΔT = 22.3°C

Therefore, the change in the temperature of Fe is 22.3°C

For Pb:

Mass (M) = 10g

Specific heat capacity (C) = 0.160J/g°C

Change in temperature (ΔT) = ..?

Heat (Q) = 100J

Q = MCΔT

Divide both side by MC

ΔT = Q/MC

ΔT = 100 / (10 x 0.160)

ΔT = 62.5°C

Therefore, the change in the temperature of Pb is 62.5°C

Summary:

Substance >> Change in temperature

Water >>>>>> 2.4°C

Ag >>>>>>>>> 42.6°C

Ca >>>>>>>>> 15.4°C

Fe >>>>>>>>> 22.3°C

Pb >>>>>>>>> 62.5°C

From the calculations made above, Pb has the greatest change in temperature

7 0

2 years ago

In a sodium chloride solution of concentration 0.1 mol / L, what is the concentration of chloride ions in ppm?

Fynjy0 [20]

Answer:

3550ppm

<h3>explanation</h3>

A 1 M solution of sodium chloride (NaCl) has a molar mass 35.45 for chloride, which you find from looking up the atomic mass of chlorine on the periodic table and noting there is only 1 Cl ion per NaCl molecule. The mass of sodium doesn't come into play since we're only looking at chloride ions for this problem. So, you now have the relation:

35.45 gram/mole or 35.5 g/mol

You either move the decimal point over one space to the left or multiply this value times 0.1 to get the number of grams in a 0.1 M solution, to give you 3.55 grams per liter for a 0.1 M NaCl solu

tion. 3.55 g/L is the same as 3550 mg/L

Since 1 mg/L is about 1 ppm:

A 0.1 M solution of NaCl has a concentration of about 3550 ppm Cl ions.

5 0

3 years ago

si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?​

si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?