select the correct answer.\nwhat is the heat required to vaporize 650 grams of a liquid with a heat of…

select the correct answer.\nwhat is the heat required to vaporize 650 grams of a liquid with a heat of vaporization of 723 joules/gram?\na. 0.90 j\nb. 1.1 j\nc. 73 j\nd. 1,370 j\ne. 470,000 j

select the correct answer.\nwhat is the heat required to vaporize 650 grams of a liquid with a heat of vaporization of 723 joules/gram?\na. 0.90 j\nb. 1.1 j\nc. 73 j\nd. 1,370 j\ne. 470,000 j

Answer

Explanation:

Step1: Identify the formula

The formula for heat of vaporization is $Q = m\times\Delta H_{vap}$, where $Q$ is the heat, $m$ is the mass and $\Delta H_{vap}$ is the heat of vaporization.

Step2: Substitute the values

Given $m = 650\ g$ and $\Delta H_{vap}=723\ J/g$. So $Q=650\times723$.

Step3: Calculate the result

$Q = 650\times723=469950\ J\approx470000\ J$.

Answer:

E. 470,000 J