A400 ml sample of gas is heated from -20 c to 60 c. the pressure changes from 50 to 225 kpa. what is the final vollume

Answer : The new volume of gas will be 117 ml.

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

where,

= initial pressure of gas = 50 kPa

= final pressure of gas = 225 kPa

= initial volume of gas = 400 ml

= final volume of gas = ?

= initial temperature of gas =

= final temperature of gas =  

Now put all the given values in the above equation, we get the final pressure of gas.

Therefore, the new volume of gas will be 117 ml.

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