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ankoles [38]
3 years ago
13

Help chem will mark brainlist

Chemistry
1 answer:
JulsSmile [24]3 years ago
7 0

Answer:

b

d

152.4

Explanation:

: )

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Entropy increase from solid to liquid to gas. T/F
mariarad [96]

Answer: True

Explanation:

Entropy is the measure of randomness or disorder of a system. If a system moves from an ordered arrangement to a disordered arrangement, the entropy is said to decrease and vice versa.

\Delta S is positive when randomness increases and \Delta S is negative when randomness decreases.

When the solid changes to liquid to gas ,the randomness of particles increases and hence \Delta S is positive and thus the entropy increases.

8 0
3 years ago
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When the temperature of a gas in a rigid container decreases, the particles of the gas move slower and experience fewer collisio
4vir4ik [10]
When the temperature of a gas within a rigid container decreases, the particles on average move more slowly and do not collide with one another or the container walls as often. It is the the ideal gas law that applies in this situation and states that a decrease in the temperature of a gas also results in a decrease in the pressure. Thus, automobile tyres which have a colder gas in the winter sometimes need additional air to provide suffiicient pressure. 
6 0
3 years ago
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The pressure in a car tire is 198 kPa at 27°C. After a long drive, the pressure
AlekseyPX

Answer : The temperature of the air in the tire is, 341 K

Explanation :

Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.

P\propto T

or,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1 = initial pressure = 198 kPa

P_2 = final pressure = 225 kPa

T_1 = initial temperature = 27^oC=273+27=300K

T_2 = final temperature = ?

Now put all the given values in the above equation, we get:

\frac{198kPa}{300K}=\frac{225kPa}{T_2}

T_2=340.9K\approx 341K

Therefore, the temperature of the air in the tire is, 341 K

5 0
3 years ago
How can you raise the average kinetic energy of the water molecules in a glass of water?
Crazy boy [7]
Boil it. Kinetic energy is energy of motion and hot water moleculues move more
8 0
3 years ago
Why is a changing ocean temperature of only one or 2 degrees so concerning? Please help!!!!
Svetllana [295]
Because it throws the earth off balance and if it does it often enough then it will soon add up.

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3 years ago
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