Question

Calculate the final volume after 2.83 L of gas at 1.29 atm and 95°C is changed at constant pressure to -62°C.

Answer 1

To calculate the final volume after the change in temperature at constant pressure, we can use the combined gas law formula. By substituting the given values and solving for the final volume, we find that the final volume is approximately 4.50 L.

Step-by-step explanation:

To calculate the final volume of gas when temperature and pressure are kept constant, we can use the combined gas law formula:

P1V1 = P2V2

Given:

P1 = 1.29 atm

V1 = 2.83 L

T1 = 95°C = 368 K

T2 = -62°C = 211 K

Substituting the given values into the formula:

1.29 atm * 2.83 L = P2 * V2

We can solve for V2:

V2 = (1.29 atm * 2.83 L) / P2

Now, we need to convert the temperature from Celsius to Kelvin:

T2 = 211 K

Finally, we can substitute the values into the equation:

V2 = (1.29 atm * 2.83 L) / (211 K / 368 K)

Solving for V2, the final volume is approximately 4.50 L.