Answer : The correct option is, pressure.
Explanation :
The ideal gas equation is,
where,
P = pressure of the gas
V = volume of the gas
n = number of moles of gas
T = temperature of the gas
R = gas constant
The value of 'R' has several different values which are :
That means, the value of 'R' is different due the change in the pressure value and all the variables (temperature, volume and moles) are constant.
Hence, the correct option is, pressure.
Answer : The number of moles of reacted was, 0.214 moles.
Explanation :
First we have to calculate the mole of gas.
Using ideal gas equation:
where,
P = Pressure of gas = 748 mmHg - 23.8 mHg = 724.2 mmHg = 0.953 atm (1 atm = 760 mmHg)
V = Volume of gas = 5.50 L
n = number of moles = ?
R = Gas constant =
T = Temperature of gas =
Putting values in above equation, we get:
Now we have to calculate the moles of
The balanced chemical reaction is:
From the balanced chemical reaction we conclude that,
As, 1 mole of gas produced from 1 mole of
So, 0.214 mole of gas produced from 0.214 mole of
Therefore, the number of moles of reacted was, 0.214 moles.