Matter exists in two states - solids and liquids.

Assertion : The HF_(2)^(-) ion exists in the solid state & also in liquid state but not in aqueous state. Reason : The magniture of hydrogen bonds among HF molecules is weaker than that in between HF and H_(2)O .

Assertion : The HF_(2)^(-) ion exists in the solid state & also in liquid state but not in aqueous state. Reason : The magniture of hydrogen bonds among HF molecules is weaker than that in between HF and H_(2)O .

NO_(2) and N_(2)O_(4) are two forms of nitrogen dioxide. One exists in gaseous state while other in liquid state. The nature of NO_(2) and N_(2)O_(4) forms are

The HF_(2)^(Θ) ion solid state and in liquid HF but not in the dilute aqueous solution HF_(2)^(Θ) exists in solid state and in liquid HF because HF_(2)^(Θ) ions are held together by .

Change of a solid to a liquid

State whether the specific heat capacity of a substance remains the same when its state changes from solid to liquid.

With decrease in heat, solids change to liquids and liquids change to gaseous state.

State which of the three states of matter i.e. solids, liquids or gases - have a] No definite volume b] A definite shape c] High density e] No free surfaces f] Particles - which diffuse very easily.

Heat is supplied to a certain homogeneous sample of matter, at a uniform rate. Its temperature is plotted against time, as shown Which of the following conclusions can be drawn? (i) Its specific heat capacity is greater in the solid state than the liquid state. (ii) Its specific heat capacity is greater in the liquid state than in the solid state. (iii) Its latent heat of vaporization is greater than its latent heat of fusion. (iv) Its latent heat of vaporization is smaller than its latent heat of fusion

Which of the following refers to the change of state from solid to liquid?