How are the structure and properties of solids related
1 answer:
You might be interested in
<h3>Answer:</h3>
9.65 atm
<h3>Explanation:</h3>From the question, we are given;
- Mass of octane is 1.135 g
- Volume of octane is 400 cm³ or 0.4 L
- Temperature of octane is 200°C
But, K = °C + 273.15
- Therefore, the temperature is equivalent to 473.15 K
We are required to calculate the pressure of the gas.
To do this, we are going to use the ideal gas equation;
- According to the ideal gas equation;
- PV = nRT, where n is the number of moles, R is the ideal gas constant, 0.082057 L.atm/mol.K
- We can rearrange the formula to calculate the pressure;
P = nRT ÷ V
- But, n is the number of moles;
- Moles = Mass ÷ Molar mass
- Molar mass of octane is 114.23 g/mol
- Moles of octane = 1.135 g ÷ 114.23 g/mol
= 0.00994 moles
Therefore;
P = 9.65 atm
Thus, the pressure of the gas is 9.65 atm