The force of a gas's outward push divided by the area of the walls of the container is the gas's
2 answers:
Answer:
Pressure
Explanation:
Pressure : It is defined as the force exerted on an object per unit area.
It can be defined as the thrust (compressive force acting perpendicularly to the surface of the body) acting per unit area.
Mathematical representation
If force F act upon an object and cross section area of an object is A.
Then , pressure=
Unit of pressure: S.I unit of an object is pascal.
In gas cases, pressure is a exerted force on the wall of container per unit area of the wall.
Hence, the force of gas's outward push divided by the area of the walls of the container is the gas's pressure.
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Answer: -
1 mol
Explanation: -
Number of moles of Sulphur S = 7
Number of moles of O2 = 9
The balanced chemical equation for the reaction is
2S (s)+3 O2 (g)→2SO3(g)
From the above reaction we can see that
3 mol of O2 react with 2 mol of S
9 mol of O2 will react with
= 6 mol of S
Unreacted S = 7 - = 1 mol.
If a reaction vessel initially contains 7 mol S and 9 mol O2
1 mole of s will be in the reaction vessel once the reactants have reacted as much as possible
Answer:
The final state of the substance is a gas.
The sample is initially a liquid. One or more phase changes will occur.
Explanation:
Let's consider the phase diagram for Argon (not to scale).
<em>A sample of argon is initially at a pressure of 49.6 atm and a temperature of 101.4 K. The pressure on the sample is reduced to 0.680 atm at a constant temperature of 101.4 K. Which of the following are true? Choose all that apply </em>
<em>The final state of the substance is a gas.</em> TRUE. At 0.680 atm and 101.4 K, the substance is a gas.
<em>The gas initially present will solidify.</em> FALSE. Initially, Ar is present as a liquid.
<em>The final state of the substance is a solid.</em> FALSE.
<em>The sample is initially a liquid. One or more phase changes will occur.</em> TRUE. The sample is initially liquid and only one phase change will occur.
