What is the chemical name of dry ice?

State one condition necessary to liquefy gases (other than applying high pressure).

State whether the following statement is true or false:

Solid carbon dioxide is stored under low pressure.

Fill in the following blanks with suitable words:

(a) Gases can be liquefied by applying ___ and lowering ___

(b) When steam condenses to form water, heat is ___

(c) Temp on Kelvin scale = Temp on Celsius scale + ___

(d) Scientists say that there are actually five states of matter: Solid, liquid, gas, ___ and ___

(e) The state of matter called ___ makes a fluorescent tube (or neon sign bulb) to glow.

What do you understand by the term ‘latent heat’? What are the two types of latent heat?