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kari74 [83]
4 years ago
14

A sealed flask containing 1.0 mole of H2(g) and a sealed flask containing 2.0 moles of He(g) are at the same temperature. The tw

o gases must have equal
Chemistry
1 answer:
irinina [24]4 years ago
8 0

Answer:

Pressure or Average Kinetic Energy

Explanation:

When dealing with sealed containers filled with gas, there are many variables to consider. Namely: pressure, temperature, volume, number of molecules present.

However, this question can be solved easily, without worrying too much about the other variables. Usually the case is that if there is a difference in pressure, there will be a difference in temperature, so the answer could be that both pressures must be equal.

Another way we could look at it is that the Average Kinetic Energies between the two containers have to be equal, and this will then lead to the temperatures being equal without worrying about other variables.

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In a chemical reaction, it is determined that the equilibrium constant is 0.213. Which of the following is a correct statement r
trapecia [35]
Answer: <span>There are more reactants than products at equilibrium.

Explanation:

</span>1) The equilibrium constant is defined as the ratio of the constant of reaction for the forward reaction divided by the constant of reaction for the reverse reaction.

2) If the constant of reacton for the forward reaction is greater than the constant of reaction for the reverse reaction, then the equilbrium constant is greater than 1 and the equilibrium is reached at a point where there are more products than reactants.

This is not the case given that the equilibrium constant is less than 1.

3) If the constant of reaction for the forward reaction is less than the constant of reaction for the reverse reaction, then the equilibrium constant is less than 1 and at equilibrium there will be more reactants than products.


This is the case given, since the equilibrium constant is 0.123.

Therefore, the answer is: there are more reactants than products at equilibrium.

6 0
4 years ago
A radioisotope has a half-life of 4 days how much of a 20 gram sample of this radioisotope remains at the end of each time perio
ss7ja [257]

Answer:

After 4 days 10 g will left

After 8 days 5 g will left.

Explanation:

Given data:

Half life of isotope = 4 days

Total amount of sample = 20 g

Amount left after each time period = ?

Solution:

The half life of radioactive isotope is 4 days it means after 4 days the amount left will be half of total amount.

20 g/2 = 10 g

The half amount which is left will be consume in next 4 days and remaining amount will be,

10 g/2 = 5 g

After 4 days 10 g will left

After 8 days 5 g will left.

3 0
3 years ago
I need to turn this in a 3:00 sharp
stiks02 [169]

Answer:

i think their is amswer key for that

Explanation:

5 0
3 years ago
Volume is the independent or dependent variable
m_a_m_a [10]

Answer:

Independent

Explanation:

Independent Variable is the volume of the object. Dependent Variable is the mass of the object. So it

7 0
3 years ago
What type of  reaction does Al+FeO---&gt;Al2O3+Fe have ?
Sonja [21]

Answer:

Below

Explanation:

This is a single replacement/displacement reaction! This is the "formula" for single replacement : A + BC = AC + B

6 0
3 years ago
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