The charge of a proton is always +1
<u><em>Answer: South America's climate is dominated by relatively warm regions, yet the continent can generally be grouped into 4 zones, tropical, cold, dry and temperate. Along the Equator, running from the Pacific Ocean eastward to the Atlantic Ocean is a wide climate zone of the continent that is tropical, humid and wet.</em></u>
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Explanation:
Answer:
5.521 × 10⁻² mol/m².s
Explanation:
Given:
Pressure of the Methane and Helium gas = 101.32 kPa
Temperature of the Methane and Helium gas = 298 K
Partial pressure of Methane, pA₁ = 60.79 kPa
Partial pressure of Methane at point 0.02 m away, pA₂ = 20.26 kPa
Now,
Molar flux is given as:

Here,
= 0.675 × 10⁻⁴ m²/s (for He-CH4 at 101.32 kPa and 298 K)
Z₂ - Z₁ = 0.02 m
R is the ideal gas constant = 8.314 J/mol.K
T is the temperature = 298 K
On substituting the respective values, we get

or
= 5.521 × 10⁻² mol/m².s
2. first order reaction
Hope I helped! :)