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blondinia [14]
3 years ago
6

What is The independent variable in this investigation and what is the dependent variable in this investigation

Chemistry
1 answer:
iren [92.7K]3 years ago
8 0
Independent: Number of passengers
Dependent: Distance traveled in cm
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When the temperature goes up, the volume will also go up
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A bulb is found to weigh 5.76 grams more when filled with air at 298 K and 1.00 atmosphere pressure than when it is evacuated. W
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Subtract water vapor pressure from total pressure to get partial pressure of gas A: PA=1.03 atm- 1 atm=0.03 atm.

What is the total pressure of the gases at 298 K?

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How do you find the partial pressure of water in air?

e is vapor pressure Rv = R∗/Mv = 461.5Jkg−1K−1 and Mv = 18.01gmol−1, ϵ = Mv/Md = 0.622. The vapor pressure is the partial pressure of the water vapor. where es is in Pascals and T is in Celsius.

ExpHow do you find the pressure of h2?

For the high pressures in which hydrogen gas is often stored, the van der Waals equation can be used. It is P+a(n/V)^2=nRT. For diatomic hydrogen gas, a=0.244atm L^2/mol^2 and b=0.0266L/mol.lanation:

6 0
2 years ago
La termodinámica es una ciencia que ayuda a comprender diferentes funciones y efectos que suceden a nuestro alrededor, entre est
Klio2033 [76]

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La pregunta no es clara, asi que voy a dar una breve descripicion de la termodinamica y alguno de los fenomenos que estudia

La termodinámica es la rama de la física que estudia los sistemas en equilibrio termodinámico (es decir, aquellos sistemas que no pueden sufrir un cambio espontáneo). Particularmente, la termodinámica estudia los procesos de flujo de calor (lo podemos ver en su nombre, dinámica del calor) y se relacionan estos cambios de energía con el trabajo que es posible obtener.

Entonces, por ejemplo, la termodinámica estudia como el hielo puede cambiar de fase (a medida que aumenta su temperatura) y convertirse en agua líquida.

La termodinámica también estudia como funcionan máquinas de calor, como motores de pistones, y el trabajo que estos son capaces de realizar.

Como ejemplo final, con la termodinámica podemos estudiar cosas tan complejas como equilibrio entre distintas fases (por ejemplo, el porqué podemos tener agua y hielo en equilibrio termodinámico, un ejemplo de esto son las superficies de ríos que se congelan mientras la parte inferior sigue siendo líquida)

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3 0
2 years ago
Calculate how many grams of each product are formed when 4.05g of h2o is used. 2h2o=2h2+o2
NISA [10]

Answer:

Explanation:

Given data:

Mass of water used = 4.05 g

Mass of each product produced = ?

Solution:

Chemical equation:

2H₂O   →  2H₂ + O₂

Number of moles of water:

Number of moles = mass/ molar mass

Number of moles = 4.05 g/ 18 g/mol

Number of moles = 0.225 mol

Now we will compare the moles of water with hydrogen and oxygen.

                             H₂O            :              H₂

                               2               :               2

                           0.225           :           0.225

                           

                           H₂O             :              O₂

                             2                :               1

                           0.225           :            1/2×0.225 = 0.113 mol

Mass of hydrogen:

Mass = number of moles × molar mass

Mass = 0.225 × 2 g/mol

Mass = 0.45 g

Mass of oxygen:

Mass = number of moles ×  molar mass

Mass = 0.113 mol × 32 g/mol

Mass = 3.616 g

                     

3 0
3 years ago
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