Question

At 170C, a sample of hydrogen gas occupies 125cm3. What will be the volume at 1000C? =161cm3 If the volume of a given mass of gas at 00c is 27.3cm3. What will be the volume of the gas at 100c, pressure remaining constant? (a) 2.73cm3 (c) 28.3cm3 (c) 37.3cm3 (d) 273cm

Answer 1

1. V= 161

2. V = 37.3

Further explanation  

Charles's Law states that  

When the gas pressure is kept constant, the gas volume is proportional to the temperature  

$\tt \dfrac{V1}{T1}=\dfrac{V2}{T2}$

1.

$\tt \dfrac{125}{17+273.15~K}=\dfrac{V2}{100+273.15}\\\\V2=160.7\rightarrow 161~cm^3$

2.

$\tt \dfrac{27.3}{0+273.15`K}=\dfrac{V2}{100+273.15}\\\\V2=37.3~cm^3$