A 40.0 L tank of ammonia has a pressure of 8.00 atm. Calculate the volume of the ammonia if its pressure is changed to 12.0 atm while its temperature remains constant.

1 Answer
Jun 28, 2014

In this question Pressure and volume are given and we are asked to find out that what would be the new volume when pressure is changed from one value to another.

The pressure and volumes come in connected pairs and you must put them in the proper place. We will use the Boyle' law equation;

Using Boyle's law equation;

P_1 V_1 = P_2 V_2

P_1 = 8 atm , V_1 = 40 L

P_2 = 12 atm , V_2 = ?

plug in the values;

8 atm x 40 L = 12 atm x V_2

multiply and divide:

320 L atm = 12 atm x V_2

V_2 = 320 L atm / 12 atm

V_2 = 26.7 L