Thermodynamic Processes
PHXI12:THERMODYNAMICS

371440 A monoatomic ideal gas, initially at temperature T1, is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T2 by releasing the piston suddenly. If L1 and L2 are the lengths of the gas column before and after expansion respectively, then T1/T2 is given by

1 L1L2
2 (L1L2)2/3
3 (L2L1)2/3
4 L2L1
PHXI12:THERMODYNAMICS

371441 A monoatomic gas is compressed adiabatically till its temperature is doubled. The ratio of its final volume to initial volume will be:

1 More than 1/2
2 1/2
3 Between 1 and 2
4 Less than 1/2
PHXI12:THERMODYNAMICS

371442 Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u=UVT4 and pressure p=13(UV). If the shell now undergoes an adiabatic expansion the relation between T and R is:

1 T1R
2 T1R3
3 TeR
4 Te3R
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PHXI12:THERMODYNAMICS

371440 A monoatomic ideal gas, initially at temperature T1, is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T2 by releasing the piston suddenly. If L1 and L2 are the lengths of the gas column before and after expansion respectively, then T1/T2 is given by

1 L1L2
2 (L1L2)2/3
3 (L2L1)2/3
4 L2L1
PHXI12:THERMODYNAMICS

371441 A monoatomic gas is compressed adiabatically till its temperature is doubled. The ratio of its final volume to initial volume will be:

1 More than 1/2
2 1/2
3 Between 1 and 2
4 Less than 1/2
PHXI12:THERMODYNAMICS

371442 Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u=UVT4 and pressure p=13(UV). If the shell now undergoes an adiabatic expansion the relation between T and R is:

1 T1R
2 T1R3
3 TeR
4 Te3R
PHXI12:THERMODYNAMICS

371443 In adiabatic expansion of a gas

1 Its pressure increases
2 Its temperature falls
3 Its density increases
4 Its thermal energy increases
PHXI12:THERMODYNAMICS

371440 A monoatomic ideal gas, initially at temperature T1, is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T2 by releasing the piston suddenly. If L1 and L2 are the lengths of the gas column before and after expansion respectively, then T1/T2 is given by

1 L1L2
2 (L1L2)2/3
3 (L2L1)2/3
4 L2L1
PHXI12:THERMODYNAMICS

371441 A monoatomic gas is compressed adiabatically till its temperature is doubled. The ratio of its final volume to initial volume will be:

1 More than 1/2
2 1/2
3 Between 1 and 2
4 Less than 1/2
PHXI12:THERMODYNAMICS

371442 Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u=UVT4 and pressure p=13(UV). If the shell now undergoes an adiabatic expansion the relation between T and R is:

1 T1R
2 T1R3
3 TeR
4 Te3R
PHXI12:THERMODYNAMICS

371443 In adiabatic expansion of a gas

1 Its pressure increases
2 Its temperature falls
3 Its density increases
4 Its thermal energy increases
PHXI12:THERMODYNAMICS

371440 A monoatomic ideal gas, initially at temperature T1, is enclosed in a cylinder fitted with a frictionless piston. The gas is allowed to expand adiabatically to a temperature T2 by releasing the piston suddenly. If L1 and L2 are the lengths of the gas column before and after expansion respectively, then T1/T2 is given by

1 L1L2
2 (L1L2)2/3
3 (L2L1)2/3
4 L2L1
PHXI12:THERMODYNAMICS

371441 A monoatomic gas is compressed adiabatically till its temperature is doubled. The ratio of its final volume to initial volume will be:

1 More than 1/2
2 1/2
3 Between 1 and 2
4 Less than 1/2
PHXI12:THERMODYNAMICS

371442 Consider a spherical shell of radius R at temperature T. The black body radiation inside it can be considered as an ideal gas of photons with internal energy per unit volume u=UVT4 and pressure p=13(UV). If the shell now undergoes an adiabatic expansion the relation between T and R is:

1 T1R
2 T1R3
3 TeR
4 Te3R
PHXI12:THERMODYNAMICS

371443 In adiabatic expansion of a gas

1 Its pressure increases
2 Its temperature falls
3 Its density increases
4 Its thermal energy increases