The vapor pressure of a substance is measured over a range of temperatures. A plot of the natural logarithm (ln P) of the vapor pressure versus the inverse of the temperature (in Kelvin) produces a straight line with a slope of -3.46 x 103 K. What is the enthalpy of vaporization

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?

What mass of glucose is produced when 54g of water react with carbon dioxide

What is true of composite volcanoes?