316532 Consider these two sets of bond enthalpies (in \(\mathrm{kJ} / \mathrm{mol}\) ):
\(\mathrm{X}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{C} & \mathrm{Si}-\mathrm{Si} & \mathrm{Ge}-\mathrm{Ge} & \mathrm{Sn}-\mathrm{Sn} \\240 & 260 & 297 & 348\end{array}\right]\)
(corresponding values are not in the same order)
\(\mathrm{Y}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{F} & \mathrm{C}-\mathrm{Cl} & \mathrm{Si}-\mathrm{F} & \mathrm{Si}-\mathrm{Cl} \\326 & 360 & 439 & 536\end{array}\right]\)
Sum of bond enthalpies for \(\mathrm{C}-\mathrm{C}\) and \(\mathrm{Si}-\mathrm{F}\) bond is ____.

316533 In the carbon family the melting points of the elements decrease on descending the group because the interatomic bonds become:

316534 Which has highest melting point?

316535 The correct order of bond enthalpy \(\left(\mathrm{kJmol}^{-1}\right)\) is:

316532 Consider these two sets of bond enthalpies (in \(\mathrm{kJ} / \mathrm{mol}\) ):
\(\mathrm{X}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{C} & \mathrm{Si}-\mathrm{Si} & \mathrm{Ge}-\mathrm{Ge} & \mathrm{Sn}-\mathrm{Sn} \\240 & 260 & 297 & 348\end{array}\right]\)
(corresponding values are not in the same order)
\(\mathrm{Y}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{F} & \mathrm{C}-\mathrm{Cl} & \mathrm{Si}-\mathrm{F} & \mathrm{Si}-\mathrm{Cl} \\326 & 360 & 439 & 536\end{array}\right]\)
Sum of bond enthalpies for \(\mathrm{C}-\mathrm{C}\) and \(\mathrm{Si}-\mathrm{F}\) bond is ____.

316533 In the carbon family the melting points of the elements decrease on descending the group because the interatomic bonds become:

316534 Which has highest melting point?

316535 The correct order of bond enthalpy \(\left(\mathrm{kJmol}^{-1}\right)\) is:

316532 Consider these two sets of bond enthalpies (in \(\mathrm{kJ} / \mathrm{mol}\) ):
\(\mathrm{X}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{C} & \mathrm{Si}-\mathrm{Si} & \mathrm{Ge}-\mathrm{Ge} & \mathrm{Sn}-\mathrm{Sn} \\240 & 260 & 297 & 348\end{array}\right]\)
(corresponding values are not in the same order)
\(\mathrm{Y}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{F} & \mathrm{C}-\mathrm{Cl} & \mathrm{Si}-\mathrm{F} & \mathrm{Si}-\mathrm{Cl} \\326 & 360 & 439 & 536\end{array}\right]\)
Sum of bond enthalpies for \(\mathrm{C}-\mathrm{C}\) and \(\mathrm{Si}-\mathrm{F}\) bond is ____.

316533 In the carbon family the melting points of the elements decrease on descending the group because the interatomic bonds become:

316534 Which has highest melting point?

316535 The correct order of bond enthalpy \(\left(\mathrm{kJmol}^{-1}\right)\) is:

316532 Consider these two sets of bond enthalpies (in \(\mathrm{kJ} / \mathrm{mol}\) ):
\(\mathrm{X}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{C} & \mathrm{Si}-\mathrm{Si} & \mathrm{Ge}-\mathrm{Ge} & \mathrm{Sn}-\mathrm{Sn} \\240 & 260 & 297 & 348\end{array}\right]\)
(corresponding values are not in the same order)
\(\mathrm{Y}=\left[\begin{array}{cccc}\mathrm{C}-\mathrm{F} & \mathrm{C}-\mathrm{Cl} & \mathrm{Si}-\mathrm{F} & \mathrm{Si}-\mathrm{Cl} \\326 & 360 & 439 & 536\end{array}\right]\)
Sum of bond enthalpies for \(\mathrm{C}-\mathrm{C}\) and \(\mathrm{Si}-\mathrm{F}\) bond is ____.

316533 In the carbon family the melting points of the elements decrease on descending the group because the interatomic bonds become:

316534 Which has highest melting point?

316535 The correct order of bond enthalpy \(\left(\mathrm{kJmol}^{-1}\right)\) is: