A 100ml volume of gas is at a temperature of 100K and 5kPa, what is the new volume if the pressure is changed to 10kPa?
STEP 1 Identify
variables
STEP 2 Fill in the formula
STEP 3 Cross Multiple
P
V
T2
P
P2
Initial
Final
P.
P
=
V
V
T
TO
STEP 4 Solve for unknown / show work

Sol. P base 1 = 10 kpa = 10 × 10^3 pa. P base 2 = 50 × 10^3 pa. v base 1 = 200 cc. v base 2 = 50 cc (i) Work done on the gas = ½ (10+50) x 10^3 x (50-200) x 10 ^-6 = - 4.5 J (ii) dQ = 0 ⇒ 0 = du + dw ⇒ du = – dw = 4.5 J

Explanation:

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

5.6⋅10−^19  j

do you need the explaination?