Consider a mole of CO2 and a mole of N2O each at STP. Which of the following sta

Question

Consider a mole of CO2 and a mole of N2O each at STP. Which of the following statements are true?

1. N2O will have a higher density at these conditions.

2. When the volume is not held constant, raising the temperature will decrease the density of both samples.

3. When the volume is held constant, raising the temperature will increase the density of both samples.

4. Both samples will occupy the same volume.

5. Both gases will have approximately the same density at these conditions.

6. The CO2 sample will contain fewer molecules of gas.

Explanation / Answer

CO2 = 44 g/mol

N2O = 44 g/mol

Q1

false, they have similar molar mass

Q2

if T increases, then V increases, therefore

D = mass/V --> decreases for both

Q3

false, since V = fixed

mass = fixed

then D= mass/V = fixed

Q4

True, since they have simlar mass, moles, T , V at same conditions

Q5

true, since they have similar molar masses

Q6

false

since they both hae similar mass, they will have similarm oles, therefore, similarm olecules

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