Kelvin temperature is -80K. What is the corresponding temperature on celsius scale?

He viscosities of several liquids are being compared. all the liquids are poured down a slope with equal path lengths. the liquid with the highest viscosity will

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form