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Hodder edexcel energetics help!! Standard enthalpy changes Watch

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    Not sure how to go about this question:
    The temperature change on mixing 25cm3 of 1.0 moldm-3 hydrochloric acid with 25cm3 of 1.0 moldm-3 potassium hydroxide is 6.5 degrees celsius. What is the temperature on mixing 50cm3 each of the same two solutions?
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    (Original post by cloudbunni)
    Not sure how to go about this question:
    The temperature change on mixing 25cm3 of 1.0 moldm-3 hydrochloric acid with 25cm3 of 1.0 moldm-3 potassium hydroxide is 6.5 degrees celsius. What is the temperature on mixing 50cm3 each of the same two solutions?
    it's a trick. the temperature change is the same, as there is more solution so it takes up more energy. Work backwards from the enthalpy change of the first reaction and you can prove it
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    Ohhhh i see!! Thankyou very much for your help

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