Answer:
Explanation:
1. Temperature of the bottle when only helium gas was present :T
P= 1.83 atm
V = 2.50 L
n = 0.458 moles
Using an Ideal gas equation:
PV=nRT
T= PV/nR= 1.83*2.50/0.458* 0.0821 =121.81K
2. Temperature of the bottle when argon gas is added into the container:T'
P' =2.05 atm
V = 2.50 L
n' = 0.458 mol + 0.713 mol = 1.171 mol
PV=nRT
T= PV/nR = 1.83*2.50/1.171*0.0802 = 53.37
The change in temperature will be
Final temperature = Initial temperature:T' - T
53.37 k - 121.81 K = -68.44 K
The change in temperature of the gas mixture is -68.44 K.
<span>CCl4 is a non polar molecule because though each of the C-Cl bond is polar but the resultant of all these dipole moments is zero as its a symmetrical tetrahedral shape molecule ,and their is a cancellation of dipole moment in each pair.</span>
Answer:
lower temperature
Explanation:
When we boil water at vacuum, it boils at a lower temperature than the normal temperature
Boiling is defined as a physical phenomenon where bubbles are formed and they turn into vapor when the liquid is brought into heat.
The pressure is also decreased when water is heated under vacuum. The atmospheric pressure is reduced as the pressure is removed when water water boils at vacuum.
Thus, water inside vacuum boils at a lower temperature than it does under the normal pressure.
Answer:
Explanation:some data are missing are they need experiment??
