Physics
Heat
Easy
Question
Helium gas is subjected to a polytropic process in which t he heat supplied to the gas is four times the work one by it. The molar heat capacity of the gas for the process is: (R is universal gas constant)
- R/2
- R
- 2R
- 3R
The correct answer is: 2R
Related Questions to study
Physics
A n ideal gas is taken along the path AB as shown in the figure .The work done by the g as is
A n ideal gas is taken along the path AB as shown in the figure .The work done by the g as is
PhysicsHeat
Physics
A certain mass of an ideal diatomic gas contained in a closed vessel is heated ; it is observed that the temperature remains constant; however, half the amount of gas gets dissociated; the ratio of the heat supplied to the gas initial internal energy of the gas will be
A certain mass of an ideal diatomic gas contained in a closed vessel is heated ; it is observed that the temperature remains constant; however, half the amount of gas gets dissociated; the ratio of the heat supplied to the gas initial internal energy of the gas will be
PhysicsHeat
Physics
The internal energy of an ideal diatomic gas corresponding to volume V and pressure P is U = 2.5 PV. The gas expands from 1 Iitre to 2 Iitre at a constant pressure of one atmosphere . The heat supplied to gas is
The internal energy of an ideal diatomic gas corresponding to volume V and pressure P is U = 2.5 PV. The gas expands from 1 Iitre to 2 Iitre at a constant pressure of one atmosphere . The heat supplied to gas is
PhysicsHeat
Physics
Internal energy of an ideal gas depends upon
Internal energy of an ideal gas depends upon
PhysicsHeat
Physics
Two systems in thermal equilibrium with a third system seperately are in thermal equilibrium with each other. The above statement is
Two systems in thermal equilibrium with a third system seperately are in thermal equilibrium with each other. The above statement is
PhysicsHeat
Physics
A system is said to be in thermal equilibrium if
A system is said to be in thermal equilibrium if
PhysicsHeat
Physics
A volume V of air saturated with water vapour exerts a pressure P. Pressure of saturated vapour is P0 - If the volume is made V/2 isothermally, the final pressure will
be :
A volume V of air saturated with water vapour exerts a pressure P. Pressure of saturated vapour is P0 - If the volume is made V/2 isothermally, the final pressure will
be :
PhysicsHeat
Physics
During an experiment an ideal gas is found to obey an additional law v2 P = constant. The gas is initially at temperature T and volume V. When it expands to a volume 2 V, the temperature becomes
During an experiment an ideal gas is found to obey an additional law v2 P = constant. The gas is initially at temperature T and volume V. When it expands to a volume 2 V, the temperature becomes
PhysicsHeat
Physics
Two gases A and B having the same temperature T, same pressure P and same volume V are mixed. If the mixture s at the same temperature and occupies a volume V, the pressure of the mixture is
Two gases A and B having the same temperature T, same pressure P and same volume V are mixed. If the mixture s at the same temperature and occupies a volume V, the pressure of the mixture is
PhysicsHeat
Physics
If N is Avogadro's number, then the number of molecules in 6 g of hydrogen at NTP is
If N is Avogadro's number, then the number of molecules in 6 g of hydrogen at NTP is
PhysicsHeat
Physics
A gas is at on atmosphere. To what pressure it should be subjected at constant temperature so as to have of its initial volume?
A gas is at on atmosphere. To what pressure it should be subjected at constant temperature so as to have of its initial volume?
PhysicsHeat
Physics
If the volume of air at 0°C and 10 atmospheric pressure is 10 Iitre, its volume , in
Iitre, at normal temperature and pressure would be
If the volume of air at 0°C and 10 atmospheric pressure is 10 Iitre, its volume , in
Iitre, at normal temperature and pressure would be
PhysicsHeat
Physics
It is required to double the pressure of a gas in a container at 27°C by heating it. To what temperature the gas should be raised?
It is required to double the pressure of a gas in a container at 27°C by heating it. To what temperature the gas should be raised?
PhysicsHeat
Physics
A sample of a perfect gas occupies a volume v at a pressure P and obsolete temperature T. The mass of each molecule is m, which of the following expression s given the number of molecules in the sample?
A sample of a perfect gas occupies a volume v at a pressure P and obsolete temperature T. The mass of each molecule is m, which of the following expression s given the number of molecules in the sample?
PhysicsHeat
Physics
In order to increase the volume of a gas to 3 times constant pressure at 40oC, the final temperature should be
In order to increase the volume of a gas to 3 times constant pressure at 40oC, the final temperature should be
PhysicsHeat
