Question

When a fixed amount of gas has its Kelvin temperature and pressure doubled, the new volume of the gas is :

• A. four times greater than its original volume
• B. twice its original volume
• C. unchanged
• D. one half its original volume
• E. one fourth its original volume

Answer 1

The correct option is C unchanged

For constant number of moles, $P_1{V}_1/T_1$$=$$P_2{V}_2/T_2$

Temperature and pressure are doubled so $P_2$$=$$2P_1$ and $T_2$$=$$2T_1$

Putting into above equation, we get

$V_2$$=$$V_1$.