Question

The volume of ammonia gas at 1.14 atm of pressure is gradually decreased from 90.3 mL to 43.4 mL. What is the final pressure of ammonia if there is no change in temperature

Answer 1

2.37 atm

Step-by-step explanation:

Step 1: Given data

• Initial pressure of ammonia (P₁): 1.14 atm

• Initial volume of ammonia (V₁): 90.3 mL

• Final pressure of ammonia (P₂): ?

• Final volume of ammonia (V₂): 43.4 mL

• Constant temperature

Step 2: Calculate the final pressure of ammonia

Since the temperature is kept constant, we can calculate the final pressure of ammonia using Boyle's law.

`P_1 * V_1 = P_2 * V_2\\P_2 = (P_1 * V_1)/(V_2) = (1.14atm * 90.3mL)/(43.4mL) = 2.37 atm`

Answer 2

THE FINAL PRESSURE OF AMMONIA IF THERE IS NO CHANGE IN TEMPERATURE AND A DECREASE IN VOLUME FROM 90.3 mL TO 43.4 mL IS 2.91 atm.

Step-by-step explanation:

At constant temperature, the pressure of a given mass of gas is inversely proportional to the volume. This question follows Boyle's law of gas laws.

Mathematically written as:

P1V1 = P2V2

Re-arranging the formula by making P2 the subject of the formula;

P2 = P1V1 / T2

P1 = 1.4 atm

V1 = 90.3 mL

V2 = 43.4 mL

P2 = unknown

So therefore, we have:

P2 = 1.4 * 90.3 / 43.4

P2 = 2.91 atm

The final pressure of ammonia is therefore 2.91 atm.