WorksheetsQUIZ on Thermodynamics Sem II
Total questions: 10
Worksheet time: 6mins
what are the functions involved in carnot cycle?
Isothermal Expansion
Adiabatic Expansion
IsothermalCompression
Adiabatic Compression
efficiency of a heat engine is always (a) than 100 %.
conversion of ice cube to water leads to
increase in Entropy
decrese in Entropy
remains same
What will be the minimum amount of work required to operate a refrigerator machine which removes 4.2 Kj of heat at 273 K and rejects it at 323 K.
650 Joules
500 Joules
200 Joules
100 joules
For an spontaneous process
ΔS>0
ΔS=0
ΔS≤0
ΔS<0
Work done in a reversible process is ------------ than irreversible process.
(a)
1 mole of helium gas is heated from a temperature of 300 K to 600 K. Calculate the entropy change if
a) Volume is kept constant
b) Pressure is kept constant
14.4 Jk-1mol-1 and 8.6 Jk-1mol-1
2.4 Jk-1mol-1 and 8.6 Jk-1mol-1
8.6 Jk-1mol-1 and 14.4 Jk-1mol-1
14.4 Jk-1mol-1 and 6.6 Jk-1mol-1
For a reversible process
ΔS=0
ΔS>0
ΔS<0
none of the above
select the most random system of the following:
sugar cubes in a box
sugar cubes scattered on a table
sugar dissolved in water
finely powdered sugar
Calculate the entropy change involved in the conversion of 1 mole of ice at 273 K to water at the same temperature.
12.4 J K-1
22.1 J K-1
43 J K-1
20 J K-1
