.8 grams of phosphorus are recommended.
Answer:
i) 
ii) 
ii) 
Explanation:
As the initial and final states of the sample are the same, the ΔU of the sample is, for the three cases
since 
i)Reversibly 
so 
can be calculated by
and because of the first law of thermodynamics
ii)Irreversibly with 
we can calculate 
by the law of ideal gases
then w can be calculated by
and
iii)a free expansion 
so 
(there's no work at vaccum) and 
Answer:
Explanation:
Places near the Equator experience little seasonal variation. They have about the same amount of daylight and darkness throughout the year. These places remain warm year-round. Near the Equator, regions typically have alternating rainy and dry seasons.
Answer:
CO HAS A TRIPLE BOND WHILE C-O BOND IN CO2 IS A DOUBLE BOND
CO HAS A LONE PAIR ON CARBON WHILE CO2 DOES NOT
Explanation:
Bond dissociation bond enthalpy or energy is the energy needed to break 1 mole of a divalent molecule into separate atoms mostly in the gaseous state.
The carbon and oxygen in carbon monoxide form a triple bond as carbon monoxide has 10 electrons in their outermost shell which results into six shared electrons in 3 bonding orbitals as against the double bond formed by other carbon compounds. Four electrons come from oxygen and the remaining two from carbon and due to this, two electrons from oxygen will occupy one orbital and this forms a dative bond. Also because of the triple bond, carbon monoxide is often regarded as a more stable compound than carbon dioxide with a double bond. This gives it its higher bond dissociation enthalpy value and more energy is needed to break it into its separate atoms. This is in conjunction with a larger bond length similar to the bong length in a triple bond. This makes it more stronger than the bond dissociation enthalpy of carbon dioxide having a double bond.
