2. Which compound is not in natural gas?
propane methane butane ethane all of the above
3. The law of conservation of energy states that:
energy cannot be destroyed energy cannot be created energy can be converted form one form to another none of the above
4. Work is defined as:
force over distance energy over time money over time speed over distance none of the above
5. 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
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