The Heat of vaporization for NH3= 1360 J/g. Calculate the quantity of heat energy (in kJ)
needed to completely boil a 155 gram sample at its boiling point
general formula

Respuesta :

Answer:

[tex]Q=210.8kJ[/tex]

Explanation:

Hello!

In this case, since the heat of vaporization is related with the energy required by a substance to undergo the phase transition from liquid to gas, we can compute such amount of energy as shown below:

[tex]Q=m\Delta H_{vap}[/tex]

In such a way, since the enthalpy of vaporization is given as well as the mass, we compute the energy as shown below:

[tex]Q=155g*1360J/g\\\\Q=210.8kJ[/tex]

Best regards!

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