All categories

2 years ago

The volume of the vessel is reduced twice,and the number of molecules is reduced three times.How the pressure will change gas?

Physics

1 answer:

Yuri [45]2 years ago

4 0

Answer:

P₁ = ⅔ P₀

Explanation:

For this exercise we can use the ideal gas equation

PV = n R T

let's write the equation for the initial point, where we will use the subscript o and the end with subscript 2

Suppose the temperature does not change in the process

P₀V₀ / n₀ = P₁V₁ / n₁

They tell us that

V₁ = V₀ / 2

n₁ = n₀ / 3

we substitute

$P_o \frac{V_o}{n_o} = P_1 \frac{V_o}{2} \frac{3}{n_o}$

P₀ = $\frac{3}{2}$ P₁

P₁ = ⅔ P₀

You might be interested in

A sledgehammer strikes an anvil with a velocity of 50 ft/sec (Fig. 2.59). The hammer and the anvil weigh 12 lb and 100 lb, respe

saveliy_v [14]

Hard question thx for the points give me brainlest points plz

4 0

2 years ago

A power plant produces 1000 MW to supply a city 40 km away. Current flows from the power plant on a single wire of resistance 0.

nikitadnepr [17]

Answer:

Current = 8696 A

Fraction of power lost = $\dfrac{80}{529}$ = 0.151

Explanation:

Electric power is given by

$P=IV$

where I is the current and V is the voltage.

$I=\dfrac{P}{V}$

Using values from the question,

$I=\dfrac{1000\times10^6 \text{ W}}{115\times10^3\text{ V}} = 8696 \text{ A}$

The power loss is given by

$P_\text{loss} = I^2R$

where R is the resistance of the wire. From the question, the wire has a resistance of $0.050\Omega$ per km. Since resistance is proportional to length, the resistance of the wire is

$R = 0.050\times40 = 2\Omega$

Hence,

$P_\text{loss} = \left(\dfrac{200000}{23}\right)^2\times2$

The fraction lost = $\dfrac{P_\text{loss}}{P}=\left(\dfrac{200000}{23}\right)^2\times2\div (1000\times10^6)=\dfrac{80}{529}=0.151$

3 0

2 years ago

Mesopotamians also were the first to use ___________.

rusak2 [61]

I think it may be c i learned about this last year

7 0

2 years ago

Read 2 more answers

Observe: Air pressure is equal to the weight of a column of air on a particular location. Airpressure is measured in millibars (

lesya [120]

Answer:

a) When moving towards a high pressure center the pressure values increase in the equipment

b) This area is called high prison since the weight of the atmosphere on top is maximum

Explanation:

A) A high atmospheric pressure system is an area where the pressure is increasing the maximum value is close to 107 Kpa, the other side as low pressure can have small values 85.5 kPa.

When moving towards a high pressure center the pressure values increase in the equipment

B) This area is called high prison since the weight of the atmosphere on top is maximum

in general they are areas of good weather

6 0

3 years ago

Two cars collide at an intersection. One car has a mass of 1600 kg and is

pickupchik [31]

The combined momentum is 4000 kg m/s south

Explanation:

The total combined momentum of the two cars is given by the vector addition of the momenta of the two cars.

For this problem, we choose north as positive direction and south as negative direction.

The momentum of the first car travelling north is given by: