I think it will C
It will help you
It's answer is B
option 2nd +4.988 is ur answer
hope it helps...
Ch4 co2 and o2 are in gaseous state so
Delta ng ie no of moles of gaseous product-no of moles of gaseous reactant
W=delta ng RT
The chemical reaction given is:
CH₄ + 2O₂ → CO₂ + 2H₂O
Now, the work done of the chemical reaction is given by the formula:
W = -Δng RT
Δng = Changes in number of gas moles
R = Gas constant = 8.314 J/Kmol (constant)
T = Temperature = 300 K (given)
Δng = Product - Reactant = 1 - 3 = -2
Now, the work done is given as:
W = -(-2) × 8.314 × 300
∴ W = 4.988 KJ
Work is done during any chemical reaction that can be calculated with the help of a Chemical equation.
The Chemical Equation says -Work Done = """(1)
Where is the change in the number of moles of gas.
= -(-2) = 2
The Universal gas Constant, R = 8.314
Temperature, T = 300 K
Applying Equation (1) we get -
= 4988.4 J
4.9884 kJ is the Work Done
the following thermochemical equ...