2. Which compound is not in natural gas?
propane methane butane ethane all of the above
3. When a wheel rolls on a surface, the energy transferred by the tires to the surface is called:
fictional heating potential energy kinetic energy carpet burn pathway
4. Which of the following is NOT a conventional definition of standard states?
the standard state of a gaseous substance is a pressure of 1 atm for a substance in a solution, the standard state is a concentration of 1 M for a pure substance in a condensed state, the standard state is the pure liquid or solid for a liquid, the standard state is STP for an element, the standard state is the form in which the element exists under 1atm and 25°C
5. The first law of thermodynamics states:
energy can neither be destroyed nor produced the energy of universe is constant the entropy of a perfect crystal is zero the entropy of the universe is increasing none of the above
| about us | contact us
tutorials index | organic
chemistry | practice tests | online
quizzes | reference tools
site copyright (c) 2002 to neopages.com