Answer:
Explanation:
a ) false.
NH₃ is more polar molecule than PH₃ so inter-molucular attraction is greater in NH₃ ( hydrogen bond ) . Hence vapour pressure is low for NH₃ .
b ) false .
The average kinetic energy of boiling water molecules is lower on a mountaintop than it is at sea level. It is so because water boils at lower temperture on mountain and kinetic energy of molecules depends upon temperature .
c ) false
vapour pressure depends upon temperature .
d ) True
CCl4 is more volatile than CBr4
e ) false
vapour pressure increases as temperature increases.
Answer:
B. It tells whether products or reactants are favored at equilibrium.
It's melting, so solid to liquid
Answer: 204 L
Explanation:
According to ideal gas equation:
P = pressure of gas = 0.262 atm
V = Volume of gas = ?
n = number of moles = 
R = gas constant =
T =temperature =
Thus volume occupied by 11.7 g of Helium in a balloon is 204L
