Keerthi posted an Question
July 07, 2020 • 22:04 pm 30 points
  • IIT JAM
  • Chemistry (CY)

The amount of heat evolved when 500 cm^3 of 0.1 m hcl is mixed with 200cm^3 of 0.2 m naoh

The amount of heat evolved when 500 cm^3 of 0.1 M HCl is mixed with 200Cm^3 of 0.2 M NaOH

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    Dinesh khalmaniya 1 best-answer

    video solution https://doubtnut.com/question-answer-chemistry/the-amount-of-heat-evolved-when-500-cm3-01-m-hcl-is-mixed-with-200-cm3-of-02-m-naoh-is-30685890

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    Priyanshu kumar

    use formula molarity = moles / volume and concept of enthalpy of neutralisation

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    how can we know that enthalpy of neutralisation is 57.4

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    see when there is strong acid and strong base...always 57.4 kj/mole amount of energy is releases

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    okk sir thank you

  • Suman Kumar

    500 cm3 of 0.1 M HCl corresponds to 0.5×0.1=0.05 moles of hydrogen ions. 200 cm3 of 0.2 M NaOH corresponds to 0.2×0.2=0.04 moles of hydroxide ions. sodium hydroxide is completely neutralize by Hcl The enthalpy of neutralisation is 57.3 kJ/mol. For 0.04 moles, the enthalpy of neutralisation is 0.04×57.3=2.292 kJ

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