Answer:
6s
Explanation:
Barium is in group 2 of the s block and is in period 6.
Answer:
fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
Explanation:
Answer:
See below.
Explanation:
That is because of the .48.
85.48 is closer to 85 than 86.
Answer:
<u>It increases by a factor of four</u>
Explanation:
Boyle's Law : At constant temperature , the volume of fixed mass of a gas is inversely proportional to its pressure.
pV = K.......(1)
pV = constant
Charles law : The volume of the gas is directly proportional to temperature at constant pressure.
V = KT
or V/T = K = constant ....(2)
Applying equation (1) and (2)
![\frac{PV}{T}=K](https://tex.z-dn.net/?f=%5Cfrac%7BPV%7D%7BT%7D%3DK)
![\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}](https://tex.z-dn.net/?f=%5Cfrac%7BP_%7B1%7DV_%7B1%7D%7D%7BT_%7B1%7D%7D%3D%5Cfrac%7BP_%7B2%7DV_%7B2%7D%7D%7BT_%7B2%7D%7D)
According to question ,
T2 = 4 (T1)
V2 = V1
Put the value of T2 and V2 , The P2 can be calculated,
![\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{1}}{4T_{1}}](https://tex.z-dn.net/?f=%5Cfrac%7BP_%7B1%7DV_%7B1%7D%7D%7BT_%7B1%7D%7D%3D%5Cfrac%7BP_%7B2%7DV_%7B1%7D%7D%7B4T_%7B1%7D%7D)
V1 and V1 cancel each other
T1 and T1 cancel each other
We get,
![P1=\frac{P2}{4}](https://tex.z-dn.net/?f=P1%3D%5Cfrac%7BP2%7D%7B4%7D)
or
P2 = 4 P1
So pressure increased by the factor of four
This is called
Nuclear fusion
Example is two hydrogen atoms fuse to form a helium atom
Where some of the atoms of hydrogen turn in to energy
So the answer is A