The arrows that represent the phase transitions in which heat energy is gained is : (A). 1, 2 and 3
<h3>Meaning of phase transitions</h3>
Phase transitions can be defined as the changing of matter from one form to another due to the addition or gaining of heat or due to the removal or loss of heat.
Phase transitions in matter are majorly between three phases which are: Solid, Liquid and Gas.
In conclusion, The arrows that represent the phase transitions in which heat energy is gained is : (A). 1, 2 and 3
Learn more about Phase transitions: brainly.com/question/11048831
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Alright yo, I just gave this explanation off earlier
Alright dude, Hess' law isn't as complicated as most people think
Take this example
look for the change in enthalpy of A+B-> AB
A + B -> C enthalpy=10 kJ
C -> AB enthalpy=10 kJ
now if you add everything together you come up with
A + B + C --> AB + C enthalpy= 10kJ + 10 kJ= 20kJ
But notice how C is one the left and on the right of that-- so if it's on the left and on the right of the equation, you could just cancel it out
so you get A+B--> AB
tadaaa!! You found the equation you were looking for
and you know that it's enthalpy is= 10kJ + 10kJ= 20kJ
Hope that helps ya fam!
Just pm me if you need more help!
Answer:
0.92 atm
Explanation:
Assuming this is the ideal gas law, PV = nRT. Plug in the values for each.
P = unknown
V = 6.0 L
n = 0.190 moles
R = 0.0821 (there are other rates of constant, such as 8.31, 62.4, but match it up to the correct units! 8.31 will answer in units of kPa and 62.4 will answer in units of mmHg, and lastly 0.0821 answers in atm.)
T = 354.0 K
Set up your equation.
P(6) = 0.190(0.0821)(354)
6p = 5.522046
Divide.
p = 0.920341...
Answer: 0.92 atm
Hope this is right!