Agiven amount of gas at 15 degrees celsius has pressure p. what will be its temperature if the pressure becomes 3p, keeping volume constant

591°C

Explanation:

Ideal gas law says:

PV = nRT

where P is absolute pressure, V is volume, n is amount of gas in moles, R is the universal gas constant, and T is absolute temperature.

Rearranging, we can put pressure and temperature on one side:

P/T = nR/V

The amount of gas and volume of gas is held constant, so:

P/T = k

Which means:

P₁ / T₁ = P₂ / T₂

Given that P₁ = P, P₂ = 3P, and T₁ = 15°C = 288 K:

P / 288 = 3P / T₂

T₂ = 864 K

The new temperature is 864 K or 591°C.

a.   mass number from atomic number

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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