General Pressure Gauge

Chevrolet Aveo: America’s Worth Leader

The only issue American about the compact Aveo automobile is it’s Chevrolet name. Designed in Korea [or in China] by GM Daewoo, the Aveo is America’s value champion coming back in at just beneath ten thousand dollars. That’s right; you'll be able to still purchase a replacement automotive in the USA for below 10 thousand dollars excluding taxes, dealer prep, and destination charges. Let’s take a closer observe Chevy’s cut price basement people hauler.

Offered as either a four door sedan or as a five door hatchback, the Chevrolet Aveo fills an important niche within the Chevy line up as an entry level econocar. Priced nearly 5 thousand dollars less than Chevy’s next most expensive model, the Cobalt, the Aveo permits for Chevrolet to contend for a bit of the youth market. The Aveo is expressly targeted to compete against similar models from Scion, Kia, Hyundai, and Toyota.

Therefore, precisely what do customers get for their money, significantly with a base model? For starters, the Aveo comes with tires, a steering wheel, bumpers, and safety glass. Seriously, commonplace equipment for the Aveo may be a 1.6L I4 engine paired with a five speed manny tranny. Air-con will cost you additional, but the bottom equipment list does embody an AM/FM radio, rear wiper, a cargo cover, and side impact air luggage for the driver and front seat passenger. Option packages embody better sound, air, an automatic transmission, and a host of alternative accessories.

With a 97 in. wheelbase and a curb weight of nearly 2350 pounds, the Aveo certainly is a contender in the light-weight category. Headroom of nearly 40 inches permits taller drivers easier access, however one will solely surprise if anyone would notice the Aveo all that comfortable to begin with based mostly on the car’s size and the quality of the seating?

GM Daewoo [50.1% owned by General Motors] recently released a new version of the Aveo [called the Gentra in Korea] that currently is only accessible in Asia. The new Gentra/Aveo incorporates a rounder exterior departing from the dated wedged form of the present Aveo. No official word as of this writing if and when the new model can make its American debut.

While the Aveo is for certain to not win several awards, it does offer for customers possessing restricted means that a reasonable mode of transportation. For Chevrolet, who was lacking a basic home grown model, the Aveo brings in buyers who might have otherwise bypassed Chevy dealers and headed directly to Scion or Kia for his or her 1st car. Beyond {that the} Aveo is a really forgettable automobile and first time consumers may want to consider a good used automotive instead.

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general physics 1 question..15 POINTS!!!?

1. A cubic box of volume 3.90 X 10^-3 m^3 is filled with an ideal gas at atmospheric pressure at 20 degrees Celsius. The box is closed and heated to a temperature of 180 degrees Celsius.

a) What is the gauge pressure in the box, assuming that the box's volume remains constant
b) What is the net force on one side of the box due to air pressure? (V=L^3, P(atm) 1.013 X 10^5 Pa, R= 8.315 J/(mol K))

2. An ideal gas is adiabatically compressed by a process which does 300 J of work on the system.

a) How much heat was given off?
b) What was the change in internal energy of the gas?
c) What happened to the temperature of the gas? Explain.

3. An ideal gas is isothermally expanded giving up 500 J of heat.

a) What was the change in the internal energy of the gas?
b) How much work did the gas do?

1a)

From the ideal gas law:
PV = nRT
P = nRT / V

P originally was atmospheric: 1.013 X 10^5 Pa

T inside is multiplied by (180 + 273.15) / (20 + 273.15) = 1.5458 so the pressure inside becomes

(1.013 X 10^5 Pa) x 1.5458 = 1.566 X 10^5 Pa

Gauge pressure is inside pressure minus outside pressure:
1.566 X 10^5 Pa - 1.013 X 10^5 Pa
= 5.529 X 10^4 Pa <=====Answer 1a)

1b) A cube has a side of the length of the cube root of the volume. A side of the cube is the square of this length. So the area of a side of a cube is volume^(2/3)

area = volume^(2/3)
= [3.90 X 10^-3 m^3]^(2/3)
= 0.0247767 m^2

Net force is gauge pressure times area:

[5.529 X 10^4 Pa] x 0.0247767 m^2

=1369.9 Newtons <====== Answer to 1b)

2a) No heat is added or given off in an adiabatic process
zero <==== Answer to 2a

2b) Since to heat was added or removed (adiabatic), the change in internal energy is the work done on the system:
300J <===== Answer to 2b

2c) Temperature of a given system depends on the internal energy. Since the internal energy went up:

The temperature goes up <====== Answer to 2c

3) ??? This is strange. An isothermally expanding gas should ABSORB heat to maintain constant temperature.

3a) Internal energy depends on the temperature. Since the process was isothermal, the temperature did not change and therefore:

The change in internal energy did not change. <===== Answer to 3a

3b) I have to assume you meant 500 J was absorbed (not given up). Since the change in internal energy was zero, the work done has to equal the heat absorbed.

500 J <=== Answer for 3b ???

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