# Thermal Properties of Matter - Online Test

Q1. Heat is a form of
Answer : Option C
Explaination / Solution:

Heat is the amount of energy flowing from one body of matter to another spontaneously due to their temperature difference.

Q2. Heat flows from one body to another if
Answer : Option B
Explaination / Solution:

Heat is the amount of energy flowing from one body of matter to another spontaneously due to their temperature difference.

Q3.

The ice and steam point have values 32 F and 212 F respectively, on the Fahrenheit scale. Corresponding values on the Centigrade scale are

Answer : Option D
Explaination / Solution:

C5=F329
Q4. 180 equal intervals between two reference points on Fahrenheit scale correspond to
Answer : Option B
Explaination / Solution:

ΔTC100=ΔTF180
Q5.

The correct equation for converting between Fahrenheit temperature  and Celsius temperature  is

Answer : Option D
Explaination / Solution:

TU = B.P. of water

TL = M.P. of ice

Q6. If P is the pressure, μ is the number of moles in the sample, T the temperature and V the volume of gas, ideal-gas equation is
Answer : Option A
Explaination / Solution:

VNTPPVNT=kN=μNAPVμT=NAk=RPV=μRT
Q7. Plots of pressure as a function of temperature for gas thermometers containing different types and quantities of gas converge to the same point when extrapolated to zero pressure. The temperature value to which converge is.
Answer : Option B
Explaination / Solution:

Absolute zero temp. = 0K

Q8.

Relation between Kelvin (T) and Celsius scales () is

Answer : Option D
Explaination / Solution:

TZTLTUTL=TC01000=TK273.15373.15273.15
Q9. If the substance is in the form of a long rod, then for small change in temperature, ΔT, the fractional change in length, Δl/l, is
Answer : Option C
Explaination / Solution:

α=Δll×ΔTΔll=aΔT
Q10. compared to glass copper expands
Answer : Option C
Explaination / Solution:

The coefficient of linear expansion is more for copper then that of glass.