Answer:
Gases have mass, because they are made up molecules which have mass
Gaseous phase have no system and are more widespread than other states.
First you have a knowledge of bond order which is
B.O=(no. of electrons in bonding orbital - no. of electrons in non-bonding orbital)÷2
Note:
bond strength is directly proportional to bond order.
For oxygen:
B.O=(6-2)/2= 2; after the removal of two electrons(removal occur from non-bonding orbital)
B.O=(6-0)/2= 3 (As B.O increased bond strength increased)
For Nitrogen:
B.O=(6-0)/2= 3; after the removal of two electrons(removal occur from bonding orbital)
B.O=(4-0)/2= 2 (As B.O decreased bond strength decreased)
Friction. Imagine rubbing your hand against a carpet and how it gets hot even though you are pushing it afar. That is friction.
Answer:
The molar heat capacity at constant volume is 21.62 JK⁻¹mol⁻¹
The molar heat capacity at constant pressure is 29.93 JK⁻¹mol⁻¹
Explanation:
We can calculate the molar heat capacity at constant pressure from

Where
is the molar heat capacity at constant pressure
is the heat capacity at constant pressure
and
is the number of moles
Also
is given by

Hence,
becomes

From the question,
= 229.0 J
= 3.00 mol
= 2.55 K
Hence,
becomes

29.93 JK⁻¹mol⁻¹
This is the molar heat capacity at constant pressure
For, the molar heat capacity at constant volume,
From the formula

Where
is the molar heat capacity at constant volume
and
is the gas constant (
= 8.314 JK⁻¹mol⁻¹)
Then,


21.62 JK⁻¹mol⁻¹
This is the molar heat capacity at constant volume