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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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C2H6O + 3 O2 = 2 CO2 + 3 H2O.
Answer:
0.39 mol
Explanation:
Considering the ideal gas equation as:
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
At same volume, for two situations, the above equation can be written as:-
Given ,
n₁ = 1.50 mol
n₂ = ?
P₁ = 3.75 atm
P₂ = 0.998 atm
T₁ = 21.7 ºC
T₂ = 28.1 ºC
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T₁ = (21.7 + 273.15) K = 294.85 K
T₂ = (28.1 + 273.15) K = 301.25 K
Using above equation as:
![n_2=\frac{{1.50}\times {294.85}\times 0.998}{3.75\times 301.25}\ mol](https://tex.z-dn.net/?f=n_2%3D%5Cfrac%7B%7B1.50%7D%5Ctimes%20%7B294.85%7D%5Ctimes%200.998%7D%7B3.75%5Ctimes%20301.25%7D%5C%20mol)
Solving for n₂ , we get:
n₂ = 0.39 mol
False; a leaf produces food by soaking in sunlight and water for the plant. A scientist can not conduct photosynthesis like a leaf canZ