A sample of nitrogen in a rigid container that is originally at 25.0°C and 98.0 kpa is heated until the pressure is 177 kpa. What is the final temp in Kelvin, in degrees celsius

The final temp : 538.2 K = 265.2 °C

Given

Temperature : 25 + 273 = 298 K

Initial Pressure = 98 kPa

Final pressure = 177 kPa

Required

The final temp

Solution

Gay Lussac's Law  

When the volume is not changed, the gas pressure is proportional to its absolute temperature  

Input the value :

T₂=(P₂.T₁)/P₁

T₂=(177 x 298)/98

T₂=538.2 K

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.