Only small amount of evaporation of water produces large cooling effects because of its________?

Pick out the wrong statement. Generally for physical adsorption, a gas of________?

One kg of carbon for theoretically complete combustion requires ________ kg of air?

A good metallurgical coke should have very low________?

The product out from a cupola is called ________?

Heavy water (D2O) in a nuclear reactor serves as a________?