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3 years ago

As the volume of a 1 mole sample of gas increases, with the temperature remaining constant, the pressure exerted by the gas:

1 answer:

7 0

I believe the correct answer would be decreases. At constant temperature, the volume and pressure are inversely related that is when one value increases the other decreases or as one decreases the other increases. Hope this helps. Have a nice day.

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Which statement is true of the particles that make up a substance?

victus00 [196]

Particles in a gas have more energy than particles in a liquid. Because in gaseous state particles are free to move around due to which kinetic energy of molecule or gas increases and hence overall energy increases

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2 years ago

A reaction mixture initially contains 0.86 atm NO and 0.86 atm SO3. Determine the equilibrium pressure of NO2 if Kp for the reac

dlinn [17]

Explanation:

Reaction equation for this reaction is as follows.

$NO(g) + SO_{3}(g) \rightarrow NO_{2}(g) + SO_{2}(g)$

It is given that $K_{p}$ = 0.0118.

According to the ICE table,

$NO(g) + SO_{3}(g) \rightarrow NO_{2}(g) + SO_{2}(g)$

Initial: 0.86 0.86 0 0

Change: -x -x +x +x

Equilibrium: 0.86 - x 0.86 - x x x

Hence, value of $K_{p}$ will be calculated as follows.

$K_{p} = \frac{P_{NO_{2}} \times P_{SO_{3}}}{P_{NO} \times P_{SO_{3}}}$

0.0118 = $\frac{x \times x}{(0.86 - x)^{2}}$

x = 0.084 atm

Thus, we can conclude that $P_{NO_{2}}$ is 0.084 atm.

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3 years ago

Ethanol undergoes combustion in oxygen to produce carbon dioxide gas and liquid water. The standard heat of combustion of ethano

Mama L [17]

Answer:

$-277.6\ \text{kJ/mol}$

Explanation:

Heat of combustion of $C_2H_5OH(l)$ = -1366.8 kJ/mol

Heat of formation of $CO_2(g)$ = -393.5 kJ/mol

Heat of formation of $H_2O(l)$ = -285.8 kJ/mol

The reaction is

$C_2H_5OH(l)\rightarrow 2CO_2(g)+3H_2O(l)$

Assuming $x$ is the standard enthalpy of formation of ethanol

$-1366.8=2\times (-393.5)+3\times (-285.8)-x\\\Rightarrow x=2\times (-393.5)+3\times (-285.8)+1366.8\\\Rightarrow x=-277.6\ \text{kJ/mol}$

The standard enthalpy of formation of ethanol is $-277.6\ \text{kJ/mol}$ .

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3 years ago

When you have asthma will there be fewer oxygen molecules in your body then normal?

Alex17521 [72]

Answer:

How Asthma Affects Your Body. Asthma is a disease that affects the airways of your lungs. With asthma, your airways' lining tends to always be in a hypersensitive state characterized by redness and swelling (inflammation). It's similar to how your skin becomes red, irritated and sensitive after a sunburn.

Explanation:

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2 years ago

1. To begin, check that this question is shown: The tallest building in the world, the Burj Khalifa

zimovet [89]

Answer:

Explanation:

a. 82,000

b.Metric unit

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1 year ago