Answer : The value of of the reaction is, -369.2 KJ
Explanation :
Formula used :
where,
= internal energy of the reaction = ?
= enthalpy of the reaction = -184.6 KJ/mole = -184600 J/mole
The balanced chemical reaction is,
when the moles of are 2 moles then the reaction will be,
From the given balanced chemical reaction we conclude that,
= change in the moles of the reaction = Moles of product - Moles of reactant = 4 - 4 = 0 mole
R = gas constant = 8.314 J/mole.K
T = temperature =
Now put all the given values in the above formula, we get:
Therefore, the value of of the reaction is, -369.2 KJ
Answer:
Cardiac output (CO) = 8.54 l / min
Explanation:
Given:
Oxygen consumption (V) = 1.41 l O2/min
Oxygen in arterial (Ca) = 190 ml O2/L = 0.19 l O2/L
Oxygen in venous (Cv) = 25 ml O2/L = 0.025 l O2/L
Find:
Cardiac output (CO)
Computation:
Cardiac output (CO) = V / (Ca - Cv)
Cardiac output (CO) = 1.41 / (0.19 - 0.025)
Cardiac output (CO) = 8.54 l / min
It means the system absorbs energy from surrounding objects; usually, but not always, involving heat
Answer:
P₂ = 13.9 atm (3 sig. figs.)
Explanation:
The pressure (P), Volume (V) relationship with Temperature (T) & mass (n) held constant is an inverse proportionality. That is Boyles Law ...
P ∝ 1/V => P = k/V => k = P·V
For two pressure-volume conditions, the proportionality constant (k) remains constant where k₁ = k₂ and P₁·V₁ = P₂·V₂ => P₂ = P₁·V₁/V₂
Given:
P₁ = 1.31 atm.
V₁ = 5.51 L
P₂ = ?
V₂ = 0.520 L
V₂ = (1.31 atm)(5.51L)/(0.520L) = 13.88096154 atm (calc. ans.) = 13.9 atm (3 sig. figs.)