Reaction Rate is the rate at which a substance undergoes a chemical change.
The volume of 0.20 moles of helium at STP is 4.5 liters.
Explanation:
Given:
Number of moles = 0.20 moles
To Find:
The volume of Helium at STP =?
Solution:
According to ideal gas law
PV = nRT
where
P is pressure,
V is volume,
n is the number of moles
R is the gas constant, and
T is temperature in Kelvin.
The question already gives us the values for p and T
,because helium is at STP. This means that temperature is 273.15 K and pressure is 1 atm
.
We also already know the gas constant. In our case, we'll use the value of
0.08206 L atm/K mol since these units fit the units of our given values the best
On substituting these values we get



V = 4.5 Liters
Answer:
cornea, pupil, lens, vitreous humor
The pressure increase does not affect the equilibrium shift reaction.
Answer:
2NH3+3/2O2=N2+3H2O
Explanation:
balance both sides to have equal elements. LHS:N RHS:N2
H3 H2
O2 O