369547 The heats of combustion of rhombic and monoclinic sulphur are respectively 70.96 and \(\mathrm{71.03 \mathrm{k}}\) cal. What will be the heat of conversion of rhombic sulphur to monoclinic?

369548 The enthalpy change for the process \(\mathrm{\mathrm{CCl}_{4(\mathrm{~g})} \rightarrow \mathrm{C}_{(\mathrm{g})}+4 \mathrm{Cl}_{(\mathrm{g})}}\) and bond enthalpy of \(\mathrm{\mathrm{C}-}\) \(\mathrm{\mathrm{Cl}}\) in \(\mathrm{\mathrm{CCl}_{4}(\mathrm{~g})}\) is
\(\mathrm{\Delta_{\text {vap }} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=30.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{f}} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=-135.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}(\mathrm{C})=715.0 \mathrm{~kJ} \mathrm{~mol}^{-1}}\), where \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ} \quad}\) is enthalpy of atomisation, \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}\left(\mathrm{Cl}_{2}\right)=242 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).

369549 Assertion :
Gaseous molecules are far apart from each other due to less attractions.
Reason :
Enthalpy of atomisation is the heat of the reaction, \(\mathrm{H}_{2} \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}\).

369550 The heat of atomisation of methane and ethane are \(\mathrm{360 \mathrm{~kJ} / \mathrm{mol}}\) and \(\mathrm{620 \mathrm{~kJ} / \mathrm{mol}}\), respectively. The longest wavelength of light capable of breaking the \(\mathrm{\mathrm{C}-\mathrm{C}}\) bond is (Avogadro number \(\rm{\left.=6.02 \times 10^{23}, h=6.62 \times 10^{-34} \mathrm{Js}\right) \text { : }}\)

369547 The heats of combustion of rhombic and monoclinic sulphur are respectively 70.96 and \(\mathrm{71.03 \mathrm{k}}\) cal. What will be the heat of conversion of rhombic sulphur to monoclinic?

369548 The enthalpy change for the process \(\mathrm{\mathrm{CCl}_{4(\mathrm{~g})} \rightarrow \mathrm{C}_{(\mathrm{g})}+4 \mathrm{Cl}_{(\mathrm{g})}}\) and bond enthalpy of \(\mathrm{\mathrm{C}-}\) \(\mathrm{\mathrm{Cl}}\) in \(\mathrm{\mathrm{CCl}_{4}(\mathrm{~g})}\) is
\(\mathrm{\Delta_{\text {vap }} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=30.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{f}} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=-135.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}(\mathrm{C})=715.0 \mathrm{~kJ} \mathrm{~mol}^{-1}}\), where \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ} \quad}\) is enthalpy of atomisation, \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}\left(\mathrm{Cl}_{2}\right)=242 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).

369549 Assertion :
Gaseous molecules are far apart from each other due to less attractions.
Reason :
Enthalpy of atomisation is the heat of the reaction, \(\mathrm{H}_{2} \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}\).

369550 The heat of atomisation of methane and ethane are \(\mathrm{360 \mathrm{~kJ} / \mathrm{mol}}\) and \(\mathrm{620 \mathrm{~kJ} / \mathrm{mol}}\), respectively. The longest wavelength of light capable of breaking the \(\mathrm{\mathrm{C}-\mathrm{C}}\) bond is (Avogadro number \(\rm{\left.=6.02 \times 10^{23}, h=6.62 \times 10^{-34} \mathrm{Js}\right) \text { : }}\)

369547 The heats of combustion of rhombic and monoclinic sulphur are respectively 70.96 and \(\mathrm{71.03 \mathrm{k}}\) cal. What will be the heat of conversion of rhombic sulphur to monoclinic?

369548 The enthalpy change for the process \(\mathrm{\mathrm{CCl}_{4(\mathrm{~g})} \rightarrow \mathrm{C}_{(\mathrm{g})}+4 \mathrm{Cl}_{(\mathrm{g})}}\) and bond enthalpy of \(\mathrm{\mathrm{C}-}\) \(\mathrm{\mathrm{Cl}}\) in \(\mathrm{\mathrm{CCl}_{4}(\mathrm{~g})}\) is
\(\mathrm{\Delta_{\text {vap }} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=30.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{f}} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=-135.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}(\mathrm{C})=715.0 \mathrm{~kJ} \mathrm{~mol}^{-1}}\), where \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ} \quad}\) is enthalpy of atomisation, \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}\left(\mathrm{Cl}_{2}\right)=242 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).

369549 Assertion :
Gaseous molecules are far apart from each other due to less attractions.
Reason :
Enthalpy of atomisation is the heat of the reaction, \(\mathrm{H}_{2} \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}\).

369550 The heat of atomisation of methane and ethane are \(\mathrm{360 \mathrm{~kJ} / \mathrm{mol}}\) and \(\mathrm{620 \mathrm{~kJ} / \mathrm{mol}}\), respectively. The longest wavelength of light capable of breaking the \(\mathrm{\mathrm{C}-\mathrm{C}}\) bond is (Avogadro number \(\rm{\left.=6.02 \times 10^{23}, h=6.62 \times 10^{-34} \mathrm{Js}\right) \text { : }}\)

369547 The heats of combustion of rhombic and monoclinic sulphur are respectively 70.96 and \(\mathrm{71.03 \mathrm{k}}\) cal. What will be the heat of conversion of rhombic sulphur to monoclinic?

369548 The enthalpy change for the process \(\mathrm{\mathrm{CCl}_{4(\mathrm{~g})} \rightarrow \mathrm{C}_{(\mathrm{g})}+4 \mathrm{Cl}_{(\mathrm{g})}}\) and bond enthalpy of \(\mathrm{\mathrm{C}-}\) \(\mathrm{\mathrm{Cl}}\) in \(\mathrm{\mathrm{CCl}_{4}(\mathrm{~g})}\) is
\(\mathrm{\Delta_{\text {vap }} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=30.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{f}} \mathrm{H}^{\circ}\left(\mathrm{CCl}_{4}\right)=-135.5 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).
\(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}(\mathrm{C})=715.0 \mathrm{~kJ} \mathrm{~mol}^{-1}}\), where \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ} \quad}\) is enthalpy of atomisation, \(\mathrm{\Delta_{\mathrm{a}} \mathrm{H}^{\circ}\left(\mathrm{Cl}_{2}\right)=242 \mathrm{~kJ} \mathrm{~mol}^{-1}}\).

369549 Assertion :
Gaseous molecules are far apart from each other due to less attractions.
Reason :
Enthalpy of atomisation is the heat of the reaction, \(\mathrm{H}_{2} \mathrm{O}_{(\mathrm{l})} \rightarrow \mathrm{H}_{2} \mathrm{O}_{(\mathrm{g})}\).

369550 The heat of atomisation of methane and ethane are \(\mathrm{360 \mathrm{~kJ} / \mathrm{mol}}\) and \(\mathrm{620 \mathrm{~kJ} / \mathrm{mol}}\), respectively. The longest wavelength of light capable of breaking the \(\mathrm{\mathrm{C}-\mathrm{C}}\) bond is (Avogadro number \(\rm{\left.=6.02 \times 10^{23}, h=6.62 \times 10^{-34} \mathrm{Js}\right) \text { : }}\)