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.

Explanation:

4 0

2 years ago

18.1-1. Diffusion of Methane Through Helium. A gas of CH4 and He is contained in a tube at 101.32 kPa pressure and 298 K. At one

Sedaia [141]

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:

$J_A^* = -D_{AB} \times\frac{pA_2 - pA_1}{RT(z_2 - z_1)}$

Here,

$D_{AB}$ = 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

$J_A^* = -0.675\times10^{-4} \times\frac{20.26 - 60.79}{8.314\times298(0.02)}$

= 5.521 × 10⁻² mol/m².s

3 0

2 years ago

What type of reaction is radioactive decay?

anyanavicka [17]

2. first order reaction
Hope I helped! :)

8 0

3 years ago

How many electrons can the fourth energy level can accommodate? a.2 b.8 c.16 d.32​

How many electrons can the fourth energy level can accommodate? a.2 b.8 c.16 d.32