Measurement

Practice Questions

1) Energy flows spontaneously from areas of higher temperature to

1. areas of equilibrium
2. areas of lower pressure
3. amounts of lower mass
4. areas of lower temperature

2) An ideal gas behaves according to

1. Avagradro's Hypothesis
2. Charles's Law
3. The Kinetic Molecular Theory
4. All of the above

3) In any exothermic chemical change, energy is

1. lost
2. gained
3. absorbed
4. increased

4) Which of the following represents a compound?

1. Cl^1-
2. OH^1-
3. Ag
4. Li₂O

5) The intrinsic energy in the particles of any pure substance is highest in the

1. solid phase
2. liquid phase
3. gaseous phase
4. gel phase

6) An ideal gas is made up of gas particles that

1. have volume
2. can be liquefied
3. attract each other
4. are in random motion

7) A pressure of 1140 millimeters of mercury is equal to how many atmospheres of pressure?

1. 1.00
2. 2.00
3. 0.670
4. 1.50

8) At standard pressure, the steam-water equilibrium temperature occurs at

1. 0 K
2. 100 K
3. 273 K
4. 373 K

9) At STP, which element has a definite shape and volume?

1. Ag
2. Hg
3. Ne
4. Xe

10) A neutral atom with 6 electrons and 8 neutrons is an isotope of

1. carbon
2. silicon
3. nitrogen
4. oxygen