If at constant temperature and pressure a change in a system produces a negative change in the Gibbs free energy, the change is _____________.
Fill in the blank(s) with the appropriate word(s).
spontaneous
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An electron with an energy of 20 GeV (3.20 × 10-9 J) moving in the +x direction collides head on with a stationary proton. After the collision, the electron travels in the -x direction
What is the momentum of the electron after the collision? Note that this is an ultrarelativistic collision so that the energy of the moving masses can be approximated by the expression E ? pc. The mass of a proton is 1.67 × 10-27 kg and that of an electron is 9.11 × 10-31kg. A) 2.5 × 10-19 kg?m/s B) 5.0 × 10-19 kg?m/s C) 1.1 × 10-17 kg?m/s D) 2.2 × 10-17 kg?m/s E) 2.7 × 10-22 kg?m/s
A one-dimensional or line defect in a crystalline material is a(n) _____________.
Fill in the blank(s) with the appropriate word(s).
Equilibrium: A 30.0-kg load is being held in place using massless wires in the ideal pulley arrangement shown in the figure. What is the magnitude of the force F?
Fill in the blank(s) with the appropriate word(s).
Define qualitative analysis