Question

A sample of ammonia gas is placed in a container of volume 250 ml exerts a pressure of 72 cmHg. The gas is transferred to a 400 ml. the container
at the same temperature.what will be its pressure ?​

Answer 1

Answer:

✌

Explanation:

Boyle's law states that when a gas is held at a constant temperature and mass in a closed container, the volume and pressure vary inversely. The equation to use is P1V1=P2V2.

Given

V1=200mL×1L1000mL=0.2 L

P1=700 mmHg

V2=100mL×1L1000mL=0.1 L

Unknown

P2

Equation

P1V1=P2V2

Solution

Rearrange the equation to isolate P2 and solve.

P2=P1V1V2

P2=(700mmHg×0.2L)0.1L=1400 L, which must be rounded to 1000 L because all of the measurements have only one significant figure.