The density of gas atoms at a certain location in the space above our planet is about 4.20 x 10^11/m^-3, and the pressure is 8.20 x 10^-10 n/m^2. what is the temperature there in °c?

- 131.5° C

Explanation:

Given:

Density of gas atoms =  4.20 x 10¹¹ m⁻³

Pressure, P =  8.20 x 10⁻¹⁰ N/m²

Now taking the 1 m³ of volume,

we have total number of atoms = Density × Volume

=  4.20 x 10¹¹ m⁻³ × 1 m³

= 4.20 x 10¹¹ atoms

Also,

1 mol contains 6.022 × 10²³ atoms

therefore,

the number of moles given gas =

= 6.97 × 10⁻¹³ moles

Now,

From the ideal gas law

PV = nRT

here,

R is the ideal gas constant = 8.314 J / mol. K

T is the temperature in Kelvin

thus,

8.20 x 10⁻¹⁰ × 1 = 6.97 × 10⁻¹³ × 8.314 × T

or

T = 141.5 K

or

T = 141.5 - 273 = - 131.5° C

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.