Answer:
A. Energy is released
Explanation:
Energy is only released when chemical bonds are formed.
Answer:
V = 20.97 L
Explanation:
Given data:
Mass of nitrogen = 23.4 g
Pressure of gas = 750 mmHg (750/760 = 0.99 atm)
Temperature of gas = 28°C (28+273= 301K)
Volume of gas = ?
Solution:
First of all we will calculate the number of moles of gas.
Number of moles = mass / molar mass
Number of moles = 23.4 g/ 28 g/mol
Number of moles = 0.84 mol
Now we will calculate the volume:
PV = nRT
V = nRT/P
R = general gas constant = 0.0821 atm.L/mol.K
V = 0.84 mol× 0.0821 atm.L/mol.K× 301 K / 0.99 atm
V = 20.76 L/0.99
V = 20.97 L
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The answer is a :)
why? bc it is. yup.
