3a1 chapter 8 questions well answered to pass

3a1 chapter 8 questions well answered
to pass

The lowest possible temperature on the Kelvin scale is:

a. 0 K

b. -32 K

c. -273 K

d. -460 K

e. -492 K. - correct answer ✔✔a



Temperature is defined as the:

a. Sum of kinetic and potential energy of the molecules which make up the substance

b. Measure of the level of internal energy

c. Amount of energy transferred from one body to another

d. Measure of amount of "caloric" passing from one body to

another

e. Measure of kinetic energy of the molecules of a substance. - correct answer ✔✔b



65 kg of water at 26C is poured into 15 kg of ice at -6C. The resulting temperature of the mixture is:

a. 21.4C

b. 10.91C

c. 5.53C

d. 15.7C

e. 3.65C. - correct answer ✔✔c



Heat is measured in units called:

a. Newtons

, b. Watts

c. Joules

d. Entropy

e. Enthalpy. - correct answer ✔✔c



The temperature of a body is a measure of the:

a. Cohesion between the molecules

b. Heat required to raise the body to its boiling point

c. hf at saturation point

d. Total hg contained in the object

e. Speed of vibration of the molecules. - correct answer ✔✔e



The amount of energy required to raise the speed of molecular vibration (temperature) of 1 kg of that
substance 1C is known as:

a. Charles' law

b. Newton's second Law of motion

c. Specific heat

d. The characteristic constant for a gas

e. Latent heat of fusion. - correct answer ✔✔c



The Kelvin scale is used mainly in _____ calculations.

a. Thermodynamic

b. Mechanical

c. Mathematical

d. Mensuration

e. Transposition. - correct answer ✔✔a



In the SI system the temperature scales used are:

a. Celsius and Kelvin