Using the NCERT room-temperature specific-heat table, identify the incorrect substance–specific heat pair, in J kg⁻¹ K⁻¹.

Explanation

In the cited NCERT room-temperature table, aluminium, carbon and tungsten are listed at about 900.0, 506.5 and 134.4 J kg⁻¹ K⁻¹ respectively. Water is about 4186 J kg⁻¹ K⁻¹, not 1200. Specific heat depends on temperature and the material form, so these are tabulated reference values rather than universal exact constants.