A mole of hydrogen gas with a volume of 0.080 m³ is compressed adiabatically to half of its original volume. If the initial average kinetic energy per hydrogen molecule is 1.38x10^-20 J, what are the initial and the final pressure of the hydrogen gas? Assume that hydrogen is a diatomic gas.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

True or false graphs must include scales that increase by the same amount