Question

When the volume of a gas is changed from 1146 mL to 765 mL, the temperature will change from __ K to 640 K

Answer 1

Answer:

Explanation:

According to Charles rule,

$\dfrac{V_{1}}{T_{1}}=\dfrac{V_{2}}{T_{2}}$

V₁ = initial volume = 1145 mL

V₂ =  final volume = 765 mL    & T₂ = final temperature = 640 K

$\dfrac{1145}{T_{2}}=\dfrac{765}{640}\\\\\\Cross \multiply\\\\1145*640=T_{2}*765\\\\\dfrac{1145*640}{765}=T_{2}\\\\T_{2} = 957.9 \ K$