Answer: ?
Explanation: I translated this and It makes no sense.
Tôi đã dịch điều này và nó không có ý nghĩa.
Answer:
CH₄ will diffuse at faster rate.
Explanation:
According to Graham's law,
The rate of diffusion is inversely proportional to the square root of molar mas of gas.
It is given in question the molar mass of CH₄ is 16 g. Thus the square rot of 16 is.
√16 = 4
The molar mass of SO₂ is 64 g and the square root is,
√64 = 16
As it is stated that diffusion rate is inversely related to the square root of molar mass thus the diffusion rate of SO₂ is lower while methane diffuse faster.
To get the value of ΔG we need to get first the value of ΔG°:
when ΔG° = - R*T*㏑K
when R is constant in KJ = 0.00831 KJ
T is the temperature in Kelvin = 25+273 = 298 K
and K is the equilibrium constant = 4.5 x 10^-4
so by substitution:
∴ ΔG° = - 0.00831 * 298 K * ㏑4.5 x 10^-4
= -19 KJ
then, we can now get the value of ΔG when:
ΔG = ΔG° - RT*㏑[HNO2]/[H+][NO2]
when ΔG° = -19 KJ
and R is constant in KJ = 0.00831
and T is the temperature in Kelvin = 298 K
and [HNO2] = 0.21 m & [H+] = 5.9 x 10^-2 & [NO2-] = 6.3 x 10^-4 m
so, by substitution:
ΔG = -19 KJ - 0.00831 * 298K* ㏑(0.21/5.9x10^-2*6.3 x10^-4 )
= -40
Answer:
The activation energy of an endothermic reaction
A) must be greater than the required △H
Explanation:
endothermic reaction : Are those which absorbs heat from the surrounding
.<em>This energy provide activation energy for the reaction to occur</em>.
So activation energy becomes more than enthalpy.
Answer:
100.8 dm3
Explanation:
mol= volume
_______
molar volume
Simply transpose the formula
volume=mol x molar volume
4.5molx22.4 mol/dm3
= 100.8dm3
NB STP=22.4 dm3 or 22400 cm3
