- #1
yamugushi
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I know these aren't exactly physics problems but I'm being asked them in physics so...
1) As lead melts there is a change in it's...
Temperature
Heat of fusion (what I now think it is)
Avg molecular KE (what I thought it was)
Avg molecular PE
2)In a room there is 250kg of air, in the avg molecular mass of air is 28.8g/mol (.0288kg) how many particles of "air" is in the room?
1) none
2) n=m/M
1) look above in parentheses
2)
n=250/.028
8860.55
Homework Statement
1) As lead melts there is a change in it's...
Temperature
Heat of fusion (what I now think it is)
Avg molecular KE (what I thought it was)
Avg molecular PE
2)In a room there is 250kg of air, in the avg molecular mass of air is 28.8g/mol (.0288kg) how many particles of "air" is in the room?
Homework Equations
1) none
2) n=m/M
The Attempt at a Solution
1) look above in parentheses
2)
n=250/.028
8860.55