The temperature point at which solid, liquid and gaseous states may stay together is known as

Which of the following is known as laughing gas?

What is the law in which under the same conditions of temperature and pressure, equal volumes of all gases contain equal number of molecules?

Storage of biological tissues such as blood, organs, semen requires low temperature which is achieved upon the usage of

Equal volume of all gases, when measured at the same temperature and pressure, contain an equal number of particles. Who proposed the above law ?

Which of the following non metal is liquid?