Description : All systems of measurement use the same units for which of the following? w) mass x) time y) force z) volume
Last Answer : ANSWER: X -- TIME
Description : A Poise is the unit of measure of which of the following? w) pressure x) viscosity y) force z) mass
Last Answer : ANSWER: X -- VISCOSITY
Description : The statement, "In regions where fluid velocity is smaller, the pressure is higher, and vice versa", is known as the principle of: w) Pascal x) Bernoulli y) Torricelli z) Archimedes
Last Answer : ANSWER: X -- BERNOULLI
Description : What is the SI unit for pressure? w) Torr x) pounds per square inch y) Pascal z) Kelvin
Last Answer : ANSWER: Y -- PASCAL
Description : What is the SI unit of pressure? w) Pascal x) Torr y) Dyne z) Kelvin
Last Answer : ANSWER: W -- PASCAL
Description : The SI unit of pressure is the: w) Torr x) dyne per centimeter squared y) atmosphere z) pascal
Last Answer : ANSWER: Z -- PASCAL
Description : The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above
Last Answer : ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN
Description : Isobaric processes take place at constant: w) temperature x) volume y) pressure z) energy
Last Answer : ANSWER: Y -- PRESSURE
Description : If the pressure of a gas is increased by a factor of 4, and the temperature is kept constant, the volume of the gas will change by which of the following factors? w) 4 x) 2 y) 1/2 z) 1/4
Last Answer : ANSWER: Z -- 1/4
Description : If the volume of a gas changes by a factor of 3, with pressure remaining constant, the temperature in Kelvin will change by a factor of: w) 1/9 x) 1/3 y) 3 z) 9
Last Answer : ANSWER: Y -- 3
Description : The molar volume of which two elements is the same at standard temperature and pressure? w) fluorine and bromine x) fluorine and iodine y) fluorine and chlorine z) bromine and iodine
Last Answer : ANSWER: Y -- FLUORINE AND CHLORINE
Description : The force responsible for drops of liquid assuming a spherical shape is known as: w) strong nuclear force x) Van der Waals attraction y) surface tension z) osmotic pressure
Last Answer : ANSWER: Y -- SURFACE TENSION
Description : The unit of pressure in S.I. units is (a) kg/cm2 (b) mm of water column (c) pascal (d) dynes per square cm (e) bars
Last Answer : Answer : c
Description : The term "laminar flow" is most often associated with the description of: w) conduction of sound by waves x) current flow in transistors y) effects of viscosity of liquids z) passage of light rays through a liquid
Last Answer : ANSWER: Y -- EFFECTS OF VISCOSITY OF LIQUIDS
Description : If two different gases have the same volume, temperature, and pressure and behave like ideal gases, they will also be identical in which one of the following ways? w) average molecular velocity x) total mass y) total molecular kinetic energy z) average momentum per molecule
Last Answer : ANSWER: Y -- TOTAL MOLECULAR KINETIC ENERGY
Description : At zero degrees Celsius and one atmosphere (STP), the volume of a gas is 1,000 milliliters. If the temperature is increased to 25 degrees Celsius and the pressure is doubled, what is the new volume of the gas? w) 546 milliliters x) 500 milliliters y) 1,000 milliliters z) 273 milliliters
Last Answer : ANSWER: W -- 546 MILLILITERS
Description : At one atmosphere, a cylinder with movable piston contains 2,000 milliliters of gas. If the pressure is increased to 5 atmospheres and the temperature remains unchanged, what is the new volume of the gas? w) 10,000 milliliters x) 400 milliliters y) 1,000 milliliters z) 4,000 milliliters
Last Answer : ANSWER: X -- 400 MILLILITERS
Description : Liquid "X" is at equilibrium with its vapor in a cylinder and piston apparatus. When the volume of the space above the liquid is 50 ml and the temperature 25!, the vapor pressure of "X" is 120 torr. What will the ... 25!C? Some liquid is always present. w) 30 torr x) 60 torr y) 120 torr z) 240 torr
Last Answer : ANSWER: Y -- 120 TORR
Description : A gas at 0 degrees C and at normal atmospheric pressure has a volume of 273 cubic centimeters. If it is held at constant pressure until its volume is doubled, its temperature will be which one of the ... it be w) 2 degrees Celsius x) 200 degrees Celsius y) 273 degrees Celsius z) 546 degrees Celsius
Last Answer : ANSWER: Y -- 273 DEGREES CELSIUS
Description : Assuming all other parameters remain constant, what happens to the pressure of a gas when the volume of the gas is increased? w) increases x) decreases y) fluctuates sinusoidally z) remains the same
Last Answer : ANSWER: X -- DECREASES
Description : Which of the following is the unit of kinematic viscosity? (A) Pascal (B) Poise (C) Stoke (D) Faraday
Last Answer : Answer: Option C
Description : An ideal flow of any fluid must satisfy (A) Pascal law (B) Newton's law of viscosity (C) Boundary layer theory (D) Continuity equation
Last Answer : Answer: Option D
Description : An ideal flow of any fluid must fulfill the following (A) Newton's law of motion (B) Newton's law of viscosity (C) Pascal' law (D) Continuity equation
Description : Consider the following gaseous equilibrium: PCl3 + Cl2 = PCl5 + heat. Which of the following changes will shift it to the right: w) lower the temperature x) remove some Cl2 y) increase the volume z) add a catalyst
Last Answer : ANSWER: W -- LOWER THE TEMPERATURE
Description : The man credited with the law relating the temperature and volume of a gas is: w) Thomson x) Boyle y) Charles z) Dalton
Last Answer : ANSWER: Y -- CHARLES
Description : What two primary factors determine whether or no molecular collision leads to a chemical reaction? w) energy and volume of molecules x) energy and mass of molecules y) energy and orientation of molecules z) orientation and volume of molecules
Last Answer : ANSWER: Y -- ENERGY AND ORIENTATION OF MOLECULES
Description : Pressure is equal to: w) Area divided by force x) force divided by area y) area times force z) area minus force
Last Answer : ANSWER: X -- FORCE DIVIDED BY AREA
Description : A wavelength is commonly measured in which one of the following units? w) radians x) angstroms y) electron volts z) seconds
Last Answer : ANSWER: X -- ANGSTROMS
Description : Which of the following units of energy is the smallest: w) calorie x) Joule y) erg z) electron-volt
Last Answer : ANSWER: Z -- ELECTRON-VOLT
Description : What is the molecular mass of a gas that effuses through a small hole at twice the rate as oxygen gas at the same temperature. (The molecular mass of O2 is 32.) w) 8.0 atomic mass units x) 16 atomic mass units y) 48 atomic mass units z) 64 atomic mass units
Last Answer : ANSWER: W -- 8.0 ATOMIC MASS UNITS
Description : The index of refraction can be considered: w) a ratio of material thickness between substances x) a ratio of velocities of light in different materials y) a ratio of mass between materials z) to have the units of photons
Last Answer : ANSWER: X -- A RATIO OF VELOCITIES OF LIGHT OF DIFFERENT MATERIALS
Description : To develop the correct mathematical description of the distribution of radiated energy of a blackbody with respect to wavelength for a given temperature, Planck found it necessary to assume that the molecular ... units or quanta y) radiant energy in a continuous form z) none of the above.
Last Answer : ANSWER: X -- RADIANT ENERGY IN DISCRETE UNITS OR QUANTA
Description : The Weber and the Maxwell are units of measure of: w) conductance x) electrical current y) magnetic flux z) relative speed
Last Answer : ANSWER: Y -- MAGNETIC FLUX
Description : Units commonly used for entropy are: w) kilograms per degree Kelvin x) Joules per degree Kelvin y) Newtons per Coulomb z) ergs
Last Answer : ANSWER: X -- JOULES PER DEGREE KELVIN
Description : The Tesla and the Gauss are units of measure of: w) conductance x) magnetic field strength y) magnetic flux z) electrical current
Last Answer : ANSWER: X -- MAGNETIC FIELD STRENGTH
Description : Electric current may be expressed in which one of the following units? w) coulombs/volt x) joules/coulomb y) coulombs/second z) ohms/second
Last Answer : ANSWER: Y -- COULOMBS/SECOND
Description : A light-year can be converted into w) astronomical units x) hours y) foot-candles z) ergs
Last Answer : ANSWER: W -- ASTRONOMICAL UNITS
Description : Which of the following is the term used for the resistance of a liquid system to flow? w) surface tension x) diffusion y) viscosity
Last Answer : ANSWER: Y -- VISCOSITY
Description : Which of the following liquid types would have th highest viscosity? w) low molecular mass-polar liquid x) high molecular mass-polar liquid y) low molecular mass-nonpolar liquid d high molecular mass-nonpolar liquid
Last Answer : ANSWER: X -- HIGH MOLECULAR MASS-POLAR LIQUID
Description : Units of stress are A. Newton B. Joules C. Pascal D. Watt
Last Answer : Pascal
Description : The unit of work or energy in S.I. units is (A) Newton (B) Pascal (C) Kilogram meter (D) Joule
Last Answer : (D) Joule
Description : The unit of power in S.I. units is (a) newton (b) pascal (c) erg (d) watt (e) joule.
Last Answer : Answer : d
Description : Which of the following is TRUE of a sample of gas at a constant temperature when the pressure is doubled? w)the volume doubles x)the volume halves y)the volume remains the same
Last Answer : ANSWER: X -- THE VOLUME HALVES
Description : During osmosis w) Pure solvent diffuses through a membrane but solutes do not. x) Pure solutes diffuse through a membrane but solvent does not. y) Pure solvent and a solution both diffuse at the same time through a membrane. z) Gases diffuse through a membrane into a solution and build up pressure.
Last Answer : ANSWER: W -- PURE SOLVENT DIFFUSES THROUGH A MEMBRANE BUT SOLUTES DO NOT.
Description : In 1953, Sir Edmund Hillary and Tenzing Norgay were the first people to reach the summit of Mount Everest from their last previously established camp at an altitude of 27,900 feet (barometric pressure ... degrees Celsius x) boiled at 68 degrees Celsius y) not boiled at any temperature z) sublimed
Last Answer : ANSWER: X -- BOILED AT 68 DEGREES CELSIUS
Description : Which one of the following is largest? w) the number of molecules in 2 grams of hydrogen gas x) the number of molecules in 60 grams of lead sulfate y) the number of molecules in 20 liters of oxygen gas at standard temperature and pressure z) the population of the United States
Last Answer : ANSWER: A - THE NUMBER OF MOLECULES IN 2 GRAMS OF HYDROGEN GAS
Description : Which of the following properties is lower for a solution than for the pure solvent? w) osmotic pressure x) vapor pressure y) temperature z) boiling point
Last Answer : ANSWER: X -- VAPOR PRESSURE
Description : Which of the following properties is greater for a solution than for the pure solvent? w) freezing point x) vapor pressure y) temperature z) boiling point
Last Answer : ANSWER: D -- BOILING POINT
Description : To increase the solubility of a gas in a liquid as much as possible, we would use: w) low temperature and high pressure. x) high temperature and high pressure. y) high temperature and low pressure. z) low temperature and low pressure.
Last Answer : ANSWER: W -- LOW TEMPERATURE AND HIGH PRESSURE.
Description : One property a colloidal dispersion has that a solution does not is: w) homogeneity x) filterability y) the Tyndall effect z) osmotic pressure
Last Answer : ANSWER: Y -- THE TYNDALL EFFECT