NH4CL is being dissolved in water and this process is being studied in a styrofoam cup with NO lid and the heat absorbed is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry to describe the item listed

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.

What happens in the particles of a gas when the gas is compressed

All of the following describe uses of nonrenewable energy sources except