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3 years ago

what do automobile makers mean when they say their cars are more powerful than their competitors' cars

Chemistry

1 answer:

JulijaS [17]3 years ago

5 0

Answer:

High rate of acceleration.

Explanation:

For an automobile power is meant by the power of engine i.e. the amount of energy the engine can deliver in a unit time to the powered-axle of an automobile. Practically it tells about the high throttle of the engine or the acceleration of the engine. This tells that in a very less time duration the car can attain high speed, also called pickup in the fancy term.

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What is force? Why?

larisa [96]

In physics, a force is any interaction that, when unopposed, will change the motion of an object. A force can cause an object with mass to change its velocity to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity.

4 0

3 years ago

A gas has a pressure of 0.470 atm at 60.0 C. What is the pressure at standard temperature?

OLEGan [10]

Answer:

P2=0.385atm

Explanation:

step one:

Given that the temperature T1= 60 Celcius

we can convert this to kelvin by adding 273k to 60 Celcius

we have T1= 333k

pressure P1= 0.470 atm

step two:

we know that the standard temperature is T2= 273K

Applying the temperature and pressure relationship we have

P1/T1=P2/T2

substituting our given data we have

0.47/333=P2/273

cross multiply we have

P2= (0.47*273)/333

P2= 128.31/333

P2=0.385 atm

6 0

3 years ago

This question in the screenshot

Morgarella [4.7K]

Mass of hydrate + crucible = 47.29 g

Mass of anhydrous salt = 2.7 g

Molar mass of anhydrous salt CuSO4 = 159.5 g

Given,

mass of empty crucible = 42.45 g

mass of hydrate salt= 4.84 g

mass of crucible after first heating = 46.1 g

mass of crucible after second heating= 45.153 g

mass of crucible after third heating= 45.15 g

so, as per the question we need to find...

Mass of hydrate + crucible = ? g

Mass of anhydrous salt = ? g

Molar mass of anhydrous salt CuSO4 = ? g

∴Mass of hydrate + crucible = 42.45 + 4.48 = 47.29 g

The given salt is in hydrate form, to remove water from this molecule we need to perform heating .

So we are taking the substance into the crucible as it is in less quantity.

Here, we performed heating 3 times and note the weight after every heating.

After this, assume that the water is totally evaporated and the remaining salt is in anhydrous form,

∴ Mass of anhydrous salt = 45.15 - 42.45 = 2.7 g

To find the molar mass of anhydrous salt of CuSO4,

atomic weight of Cu = 63.5 g

atomic weight of S = 32 g

atomic weight of O =16 g

∴ molar mass of anhydrous salt of CuSO4 = 63.5 + 32 + (16 ×3)

=159.5 gm

Learn more about molar mass here...

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5 0

2 years ago

Given the following rate equation, complete the sentences to identify the reaction order for each reagent, the overall reaction

Eva8 [605]

Answer:

1. First

2. Third

3. Fourth

4.remain the same as

Explanation:

Given the reaction equation;

Rate= k[A] [B]^3

We can see that the order of reaction is first order with respect to reactant A and third order with respect to reactant B. This gives an overall fourth order reaction.

If the concentration of A is doubled and that of B is halved. The rate of reaction remains the same.

3 0

3 years ago

Explain how carbon moves in and out of the ocean.

Marta_Voda [28]

Answer:

Living things in the ocean are able to move carbon from the atmosphere into surface waters.

Explanation:

8 0

3 years ago