Edexcel A-Level Chemistry AS 7.1 The Natur…manent

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Some diesel cars contain an extra catalytic converter for the reduction of nitrogen oxides $\left(\mathrm{NO}_{\mathrm{x}}\right)$ in exhaust gases.
A solution of urea is used for this process.

Figure for Question 1 — Edexcel A-Level Chemistry AS

urea

Urea has a melting temperature of $133^{\circ} \mathrm{C}$ .

Explain why this value is higher than expected for a relatively small molecule.

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Edexcel A-Level Chemistry AS 7.1 The Nature of the Following Intermolecular Forces I London Forces Instantaneous Dipole Induced Dipole Ii Permanent Topic Practice

Question 1