All categories

2 years ago

Which property or properties can change when the pressure of a gas changes?

1 answer:

3 0

Answer: This law states that the volume and temperature of a gas have a direct relationship: As temperature increases, volume increases, when pressure is held constant. Heating a gas increases the kinetic energy of the particles, causing the gas to expand

Explanation:

You might be interested in

Un recipiente cerrado, de 4,25 L, con tapa móvil, contiene H2S(g) a 740 Torr y 50,0°C. Se introduce en ese recipiente N2(g) a te

yulyashka [42]

Answer:

$n_{N_2}=6.41mol$

Explanation:

¡Hola!

En este caso, teniendo en cuenta la información dada por el problema, inferimos que primero se debe usar la ecuación del gas ideal con el fin de calcular las moles de gas que se encuentran al inicio del experimento:

$PV=nRT\\\\n=\frac{RT}{PV} \\\\n=\frac{0.08206\frac{atm*L}{mol*K}*(50.0+273.15)K}{740/760atm*4.25L}\\\\n=6.41mol$

Seguidamente, usamos la ley de Avogadro para calcular las moles finales, teniendo el cuenta que el volumen final es el doble del inicial (8.50 L):

$n_2=\frac{6.41mol*8.50L}{4.25L}\\\\n_2=12.82mol$

Quiere decir que las moles de N2(g) que se agregaron son:

$n_{N_2}=12.81mol-6.41mol\\\\n_{N_2}=6.41mol$

¡Saludos!

8 0

3 years ago

Consider the reaction.

Alekssandra [29.7K]

Answer:The correct answer is option C.

Explanation:

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$

At STP, 1 mol of gas occupies 22.4 L of volume

So, 100.0 L volume of $NH_3$ will be occupied by :

$\frac{1}{22.4 L}\times 100.0 L=4.4642 moles$

According to reaction 2 moles $NH_3$ are obtained from 1 mole of $N_2$ .

Then,4.4642 moles of $NH_3$ will be obtained from :

$\frac{1}{2}\times 4.4642$ that is 2.2321 moles of $N_2$

Mass of $N_2$ gas:

Moles of $N_2$ gas Molar mass of $N_2$ gas:

$2.2321 mol\times 28 g/mol=62.4988\approx 62.50 g$

Hence, the correct answer is option C.

4 0

3 years ago

Read 2 more answers

Use the drop-down menus to complete each statement.

slavikrds [6]

Question 1: A material that causes a wave to bounce off it is called the. Answer : Reflection

Question 2: A material that takes in a wave when the wave hits is called the. Answer: Absorber

8 0

2 years ago

Suggest a way to keep a parked car cool on a sunny day/

Paraphin [41]

Answer:

Crack the windows

Explanation:

believe it or not, one researcher actually tested this back in the 1980s: A study in Pediatrics found that cracking the window 5 centimeters lowered the temperature in a car by about 28°F on a 98°F day .

7 0

2 years ago

What change in energy occurs when you burn coal or petroleum?

OverLord2011 [107]

Chemical energy to thermal

5 0

3 years ago