Answer: Option (d) is the correct answer.
Explanation:
In solids, molecules are held together by strong intermolecular forces of attraction. As a result, they are unable to move from their initial position and can only vibrate at their mean position.
Hence, a solid has definite shape and volume. Solids cannot be compressed.
Whereas in plasma, molecules are hot ionized which include positively charged ions and negatively charged electrons. They collide much more rapidly with each other and are widely spreaded out.
Therefore, they occupy the volume of container in which they are placed. Plasma can be compressed.
Thus, we can conclude that substance X is a solid and substance Y is a plasma.
Answer:
Elements with unpaired valence electrons in the outer orbital are paramagnetic. Elements that are predicted to exhibit paramagnetic behavior may exhibit ferromagnetic behavior. Elements that contain only paired valence electrons are diamagnetic.
Answer:
Explanation:
halogen group
Electron affinities are negative numbers because energy is released. The elements of the halogen group (Group 17) gain electrons most readily, as can be seen from their large negative electron affinitie
The pressure of the gas will increase with the temperature as each molecule moves around. think of hot air balloons the way they inflate that big balloon is a flame underneath the gas which increases temperature and pressure.
Answer:
Explanation:
Let the tyrosine molecule be represented by TH . It will ionise in water as follows
TH ⇄ T⁻ + H⁺
Let C be the concentration of undissociated TH and α be the degree of dissociation
TH ⇄ T⁻ + H⁺
c 0 0 ( before )
c( 1-α ) αc αc ( after ionisation)
Ka = α²c² / c( 1-α )
= α²c ( neglect α in the denominator as it is very small )
pKa = 10
Ka = 10⁻¹⁰
pH = 8.5
H⁺ = 10⁻⁸°⁵
αc = 10⁻⁸°⁵
α²c =Ka = 10⁻¹⁰
α x10⁻⁸°⁵ = 10⁻¹⁰
α = 10⁻¹⁰⁺⁸°⁵
= 10⁻¹°⁵ = 1 / 31.62
Percentage of dissociation = 100 / 31.62
= 3.16 %
percent of tyrosine side chains deprotonated
