A sample of nitrogen gas has a volume of 2250 mL when it's temperature is 298 K if the volume increased to 2.82 L without changing the pressure, what is the new temperature (in Kelvinj2
473 K
273 K
373 K
173 K

is there any options? maybe im just not seeing them but i need the options to

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answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol