Gas Laws Test

Result

Gas Laws Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

What will be the volume of a gas if its pressure is reduced to half of its initial pressure at constant temperature?

A
Half

B
One-third

C
Double

D
Zero

Solution

If the pressure of the gas is reduced to half of its initial pressure at constant temperature, then the volume of the gas will be doubled.
Question 2
1 / -0

What is the effect on volume of gas, if pressure is increased in the cylinder?

A
Decreases

B
Increases

C
Remains constant

D
First decreases at maximum and then becomes constant

Solution

According to Boyle's Law, at constant temperature, the volume of a given mass of gas is inversely proportional to its pressure. Hence, if the pressure is increased in the cylinder, the volume decreases.
Question 3
1 / -0

A gas occupies 600 cm³ under 760 mm Hg pressure. At what pressure will the gas occupy 270 cm³ under constant temperature?

A
5.037 mm Hg

B
5.821 cm Hg

C
213.16 mm Hg

D
168.9 cm Hg

Solution

By applying the formula P₁V₁ = P₂V₂, we get

600 × 760 = P₂× 270

= 600 × 760 / 270
= 456000 / 270

= 1688.8 mm Hg
= 168.9 cm Hg
Question 4
1 / -0

If pressure is increased by 80%, what would be new volume if the temperature is constant?

A
9/5 times of its initial volume

B
4/5 times of its initial volume

C
5/4 times of its initial volume

D
5/9 times of its initial volume

Solution

If the pressure is increased by 80%, the new volume will be 5/9 times its initial volume at constant temperature.
Question 5
1 / -0

What would be the new volume of a gas if its pressure in a container with capacity 600 ml is decreased by 40%?

A
1000 ml

B
428.57 ml

C
360 ml

D
840 ml

Solution

The new volume of a gas, if its pressure in a container with capacity 600 ml is decreased by 40%, would be 1000 ml.