Answer:
17
Explanation:
you add 19+19 the subtract 21. I think
Answer:
1. An air mass is a body of air with a mostly constant moisture and temperature over a significant altitude. Air masses usually cover up to millions of square kilometers. A front is the boundary where two air masses with different temperature and moisture meet.
2. A cold front most likely came through because briefly stormy weather will be warmer and moister than a cold front would.
3. The water cycle is responsible for the rain, snow, and ice that falls. It also affects the wind, so it will all affect the weather.
Explanation:
I hope I did this right. Hope it helps
Answer:
ΔG = - 442.5 KJ/mol
Explanation:
Data Given
delta H = -472 kJ/mol
delta S = -108 J/mol K
So,
delta S = -0.108 J/mol K
delta Gº = ?
Solution:
The answer will be calculated by the following equation for the Gibbs free energy
G = H - TS
Where
G = Gibbs free energy
H = enthalpy of a system (heat
T = temperature
S = entropy
So the change in the Gibbs free energy at constant temperature can be written as
ΔG = ΔH - TΔS . . . . . . (1)
Where
ΔG = Change in Gibb’s free energy
ΔH = Change in enthalpy of a system
ΔS = Change in entropy
if system have standard temperature then
T = 273.15 K
Now,
put values in equation 1
ΔG = (-472 kJ/mol) - 273.15 K (-0.108 KJ/mol K)
ΔG = (-472 kJ/mol) - (-29.5 KJ/mol)
ΔG = -472 kJ/mol + 29.5 KJ/mol
ΔG = - 442.5 KJ/mol
Answer:
The answer is B
Explanation:
I know this because its right.
