The concept related to this exercise to solve this problem is the ideal Gas law which establishes
P= Pressure
V= Volume
n = Number of moles
R= Gas ideal Constant
T= Temperature
Our values are given as,
From the ideal gas equation then we rearrange the equation to obtain the number of moles, then
By definition the molecular mass (n) is expressed in terms of the mass and molecular weight therefore
Therefore the mass of the helium in the blimp is 968.327Kg
Answer:
Terminal voltage = 11.5 V
Power across load = 119.7 W
Power across internal resistance = 5.4 W
Power delivered by battery = 125.2 W
Explanation:
The current in the circuit is given by
where E is the emf of the battery, R us the load resistance and r is the internal resistance.
The terminal voltage is the potential difference across the load resistor.
V = I × R = 10.43 A × 1.1 Ω = 11.5 V
The power across any resistance is given by
For the load resistor,
For the internal resistance,
The power delivered by the battery is
This could also be found by
The discrepancy in both answers is due to the approximations. The second answer is better.