Two flasks A and B of equal capacity of volume contain SO3 and Co gas respectively under similar conditions of temperature and pressure. Then, which of the following statement is true?
(1) A has twice the number of moles as that B.
(2) B has twice the number of moles as that of A.
(3) A and B have equal number of moles.
(4) B has twice the number of atoms as that of A.
A and B have equal number of moles
Same mole because at STP
A and B have same no. of moles because they have same volume.
statement; if they have same no. of volume then they have same no. of moles and molecules .
a mole of ANY gas occupies 22.4 L at s.t.p.
(3) is correct answer
Well, well, well, let's see what we have here! We have flasks A and B, both containing different gases. And the question is which statement is true? Alright, let me think.
Since the flasks have an equal capacity, we know that the volume of the two flasks is the same. But does that mean the number of moles is also the same? Hmm, not necessarily!
So, let's go through each statement, shall we?
(1) A has twice the number of moles as that of B. Well, that might be true, but it also might not be! We can't make that assumption without knowing the molar masses of SO3 and CO. So, sorry, this statement is not necessarily true.
(2) B has twice the number of moles as that of A. Same thing here, my friend. We can't jump to conclusions without more specific information.
(3) A and B have an equal number of moles. Ah, the good old middle ground! This statement seems plausible since we don't have any data suggesting otherwise. So, let's keep this one in mind.
(4) B has twice the number of atoms as that of A. Hold on a second! We can't determine the number of atoms just by knowing the number of moles. It depends on the elements in the gases, my dear friend, so this statement is most likely false.
So, after a series of circus-like acrobatics, I would say that (3) A and B have an equal number of moles is the most reasonable statement. But remember, always double-check your facts before making a final decision!
To determine which statement is true, we need to understand the concept of moles and the relationship between moles and number of atoms.
Moles:
Mole is a unit of measurement used in chemistry to represent the amount of a substance. It is defined as the amount of a substance that contains as many entities (atoms, molecules, ions, etc.) as there are atoms in exactly 12 grams of carbon-12. One mole of any substance contains Avogadro's number of entities, which is approximately 6.022 × 10^23.
Relationship between Moles and Number of Atoms:
In a balanced chemical equation, the coefficients of the reactants and products represent the mole ratio of the entities involved. For example, in the balanced equation 2H2 + O2 → 2H2O, it means that it takes 2 moles of hydrogen (H2) to react with 1 mole of oxygen (O2) to produce 2 moles of water (H2O).
Now, let's analyze the given situation:
We have two flasks, A and B, of equal capacity. Flask A contains SO3 gas, while Flask B contains Co gas. The conditions of temperature and pressure are similar for both flasks.
To determine which statement is true, we need to compare the number of moles in flask A and B.
Statement 1: A has twice the number of moles as that of B.
This statement implies that there are more moles of SO3 in flask A compared to the moles of Co in flask B. However, since we don't know the quantities or masses of the gases in the flasks, we cannot conclude that statement 1 is true.
Statement 2: B has twice the number of moles as that of A.
This statement implies that there are more moles of Co in flask B compared to the moles of SO3 in flask A. However, similar to statement 1, we cannot determine the validity of this statement without knowing the quantities or masses of the gases.
Statement 3: A and B have an equal number of moles.
This statement suggests that the number of moles of SO3 in flask A is equal to the number of moles of Co in flask B. Since the flasks have equal capacities and are under similar conditions, it is possible for this statement to be true. However, we still need more information to confirm it.
Statement 4: B has twice the number of atoms as that of A.
This statement compares the number of atoms, not moles. However, since we know that the number of moles is directly proportional to the number of atoms for a given substance, we can conclude that the statement is not true, as it contradicts the other statements.
In conclusion, based on the given information, none of the statements can be determined to be true without further information about the quantities or masses of the gases present in the flasks.