If 20 ml of gas is subjected to a tempature change from 10 celsius to 100 celsius and a pressure change from 1 atm to 10 atm, the expression best representing the new volume is?

V₂ = 2.64 mL

Explanation:

Given data:

Initial volume = 20 mL

Initial pressure = 1 atm

Initial temperature = 10°C (10 +273 = 283 K)

Final temperature = 100°C (100+273 = 373 K)

Final volume = ?

Final pressure = 10 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂  

V₂ = 1 atm. 20 mL . 373 K / 283 K. 10 atm

V₂ = 7460 mL.K.atm / 2830 K.atm

V₂ = 2.64 mL

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current