A gas has a pressure of 760 torr at 21 degrees Celsius. What is the pressure of the gas at 250 degree Celsius.

Given,

P1=760 torr

T1=21°C

T2=250°C

P2=?

Solution,

According to Gay-Lussac's Law or Third Gas Law,

P1T2=P2T1

760×250=21×P2

P2=9047 torr

9047 is the pressure of the gas at 250 degree Celsius.

The time that elapses for the reactant molecules to break their bonds and make new bonds to give rise to the products is known as

Reaction rates

Explanation:

Reaction rates is time that elapses for the reactant molecules to break their bonds and make new bonds to give rise to the products.

Reaction rate is the speed at which chemical reactions occur. It is the change in concentration of a reactant or product per unit time. The rate of reaction changes with time significantly. Reaction rate is measured based on the rate of disappearance of a reactant or appearance of a product with increasing reaction time.