How would you indicate 2 water molecules using chemical symbols?
2 answers:
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<u>Answer:</u> The change in internal energy of the gas is 108.835 kJ
<u>Explanation:</u>
To calculate the work done for reversible expansion process, we use the equation:
where,
W = work done
P = pressure = 1.03 atm
= initial volume = 3.00 L
= final volume = 11.0 L
Putting values in above equation, we get:
(Conversion factor: 1 L. atm = 101.325 J)
Calculating the heat from power:
where,
Q = heat required
P = power = 150 W
t = time = 12 min = 720 s (Conversion factor: 1 min = 60 s)
Putting values in above equation:
The equation for first law of thermodynamics follows:
where,
Q = total amount of heat required = 108 kJ
dU = Change in internal energy = ?
W = work done = -0.835 kJ
Putting values in above equation, we get:
Hence, the change in internal energy of the gas is 108.835 kJ
A) 10.0g of Iron is 
of Iron.
One mole of dihydrogen is required to form one mole of iron, hence you'll need
of dihydrogen.
B) Likewise : 2.50g of Iron is
of Iron, hence we'll need 
of Fe2O3.
One mole of dihydrogen is required to form one mole of iron, hence you'll need
B) Likewise : 2.50g of Iron is