Thermodynamics

Question 1

1 joule equals ___ erg

Answer 1

10⁷ erg

Question 2

1 Calorie equals ___ J

Answer 2

4.2J

Question 3

1Btu equals ___ J

Answer 3

1055 J

Question 4

Specific Heat of water and ice

Answer 4

4200 J kg- K-
2100 J kg- K-

Question 5

Latent Heat of Fusion of Ice

Answer 5

336,000 J kg-

Question 6

Latent Heat of Vaporization of water

Answer 6

22,60,000 J kg-

Question 7

Absolute zero in Fahrenheit equals to

Answer 7

-460 F

Question 8

Value of Room Temperature in Fahrenheit is

Answer 8

77 F

Question 9

Normal Human Body Temperature in Fahrenheit is

Answer 9

98.6 F

Question 10

Boiling Point of Water in Fahrenheit is

Answer 10

212 F

Question 11

At which temperature Fahrenheit equals Kelvin Temperature

Answer 11

574.16 F

Question 12

Value of R used in thermodynamics

Answer 12

R = 8.314 J mol- K-

Question 13

Transmission of sound in air is an example of which thermodynamic process

Answer 13

Adiabatic Process
(Temperature change occurs but heat is not transferred )

Question 14

O° F equals

Answer 14

-18°C
255.15K

Question 15

Two Mathematical relations between Internal Energy and Temperature

Answer 15

∆U = (f/2) nR∆T
∆U = nCv∆T

Question 16

Area of Circle is given as…

Answer 16

πr²

Question 17

Two Formulae for Work Done in Adiabatic Process.

Answer 17

+W = -∆U / -W = +∆U

W = nCv∆T

Question 18

Formulae to find Gamma, Cp and Cv using Degree of Freedom

Answer 18

Gamma = 1+ (2/f)
Cp = {(f+2)/2} R
Cv = (f/2) R

Question 19

Value of Gamma for mono, di and poly atomic gases respectively.

Answer 19

Mono - 1.67
Di. - 1.4
Poly. - 1.29

Question 20

R/Cp and R/Cv are respectively equal to…

Answer 20

R/Cp = 1 - 1/r
R/Cv = r - 1