A piece of carbon of mass 0.40 kg requires thermal energy of 20 J to get heated from a temperature of 5 °C to 9 °C, specific heat capacity of carbon would be
A student heats up sulphuric acid from 5 °C to 55 °C with thermal energy of 20000 J. If mass of 4 kg specific heat capacity of sulfuric acid is
A heater raises temperature of air in a room from 22 °C to 37 °C with energy of 7500 J. If mass of air is 5 kg, specific heat capacity of air would be
Density of metal spoon when its weight in air is 0.48 N and in water is 0.42 N is