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frozen [14]
3 years ago
11

FOG forms when warm air touches a

Chemistry
1 answer:
Studentka2010 [4]3 years ago
4 0
Touches or move over a cold surface. 
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Ar (g) is placed in a 3.80 L container at 320 K. The gas pressure is 0.496 atm.
nata0808 [166]

Answer:

PV=nRt

Therefore n(number of moles)=PV/RT

=>(0.49×3.80)/(0.08206×320)

Therefore Number of moles is = 0.071mols

Explanation: By using the Real gas equation..

PV=NRT .

We can solve for the number of moles of Ar by making N the subject..

Always make sure you pressure is In atm, your Volume is in Litres and temperature in degree Kelvin.

Also Recall the universal gas constant R used in this type of questions which is 0.08206.

Hence l, by making N the subject we get our answer as

3 0
4 years ago
Consider a hypothetical reaction in which A and B are reactants and C and D are products. If 19 g of A completely reacts with 26
Leni [432]

Given reaction:

A + B ------ C + D

mass of A = 19 grams

Mass of B = 26 grams

Mass of C = 17 grams

To determine: The mass of D

Explanation:

As per the law of conservation of mass, in any chemical reaction the sum of masses of the reactants and products must remain unchanged.

Sum of masses of reactants = Sum of masses of products

19 g + 26 g = 17 g + D

Mass of D = (19+26) - 17 = 28 g

8 0
3 years ago
1. A balloon shrinks when it ’s taken outside in the winter.
monitta

Explanation:

1) Charles's Law: This law states that the volume is directly related to the temperature of the gas when pressure and number of moles are held constant.

V\propto T   (At constant Pressure and number of moles)

2) Boyle's Law: This law states that Pressure is inversely related to the volume of the gas when temperature and number of moles are held constant.

P\propto \frac{1}{V}   (At constant Temperature and number of moles)

3) Avogadro's Law: This law states that Volume is directly related to the Number of moles of gas when Pressure and temperature are held constant.

V\propto n   (At constant Pressure and Temperature)

For the given options:

1) A balloon shrinks when it is taken outside in the winter.

In this the temperature is low outside in winters and as we take the balloon outside, the volume also as it shrinks. So, this situation follows Charles's Law.

2) When the size of an air chamber is increased, the air pressure decreases.

As the size is increasing which means that the volume is increasing and hence, the pressure is decreasing. This situation is following Boyle's Law.

3) A balloon expands when air is blown into it.

As the number of particles are increasing when we blow air into the balloon and as a result the size of the balloon is also increasing. Therefore, this situation is following Avogadro's Law.

4) A closed, flexible container expands when it is heated.

In this situation, the temperature is increasing and as a result thus container is also expanding. Thus, this situation is following Charles's Law.

5) Pressing on an inflated balloon decreases its size.

Here, the pressure is increasing the volume of the balloon is decreasing because the size is decreasing. This situation is following Boyle's Law.

3 0
4 years ago
Read 2 more answers
What property do all of the group 18 elements have that makes them stand out from other elements?
aivan3 [116]
They are very unlikely to bond with any element, whether it is metallic or not.
5 0
4 years ago
Read 2 more answers
What did the geologist likely observe in the environment to draw this conclusion?
bonufazy [111]

Answer:

A geologist visits an environment to make observations. The scientist predicts that the environment will undergo secondary succession. What did the geologist likely observe in the environment to draw this conclusion? Check all that apply a

The geologist saw rocks and gravel.

b

The geologist saw cooled lava flows.

c

The geologist saw remaining soil.

d

The geologist saw a few plant species.

e

The geologist saw a few small insects.

8 0
3 years ago
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