Question

There are two gas parcels of equal volume, A
and B at the same temperature and pressure.
Parcel A is one mole of water vapour, while
parcel B is one mole of dry air. Which of the
following is TRUE?
1. Parcel A is heavier then Parcel B
2. Parcel B is heavier than Parcel A
3. Both parcels are equally heavy
4. Without temperature and pressure data,
their relative masses cannot be determined
​

Answer 1

Answer:

1. Parcel A is heavier than Parcel B.

Explanation: