Physics
Heat
Easy
Question
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?
- 273°C
- 373°C
- 327 °C
- 108 °C
The correct answer is: 327 °C
Related Questions to study
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
Physics
If masses of all molecules of a gas are halved and their speed doubled. then the ratio of initial and fin al pressure is:
If masses of all molecules of a gas are halved and their speed doubled. then the ratio of initial and fin al pressure is:
PhysicsHeat
Physics
The average kinetic energy of H2 molecules at 300 K is E. At the same temperature the average kinetic energy of 02 molecule is:
The average kinetic energy of H2 molecules at 300 K is E. At the same temperature the average kinetic energy of 02 molecule is:
PhysicsHeat
Physics
Molecular hydrogen at one atmosphere and helium at two atmospheres occupy volume V each at the same temperature . The r.m.s velocity of hydrogen molecules is x times the r.m.s velocity of helium molecules . What is the value of x?
Molecular hydrogen at one atmosphere and helium at two atmospheres occupy volume V each at the same temperature . The r.m.s velocity of hydrogen molecules is x times the r.m.s velocity of helium molecules . What is the value of x?
PhysicsHeat
Physics
What is the ratio of the total energy of al l the molecules of one mole of 0 2 to the total energy of all the molecules of two moles of helium at the same temperature?
What is the ratio of the total energy of al l the molecules of one mole of 0 2 to the total energy of all the molecules of two moles of helium at the same temperature?
PhysicsHeat
Physics
On the basis of kinetic theory of gases , the mean K.E of 1 mole per degree of freedom is
On the basis of kinetic theory of gases , the mean K.E of 1 mole per degree of freedom is
PhysicsHeat
Physics
Th e ratio of the number of moles of a monoatomic to a Polyatomic gas in a mixture of the two , behaving as an diatomic gas is : (vibrational modes of freedom is to be
ignored)
Th e ratio of the number of moles of a monoatomic to a Polyatomic gas in a mixture of the two , behaving as an diatomic gas is : (vibrational modes of freedom is to be
ignored)
PhysicsHeat
Physics
The average translational kinetic energy of the molecules of a gas w ill be doubled if at constant
The average translational kinetic energy of the molecules of a gas w ill be doubled if at constant
PhysicsHeat
Physics
If the volume of a gas is doubled at constant pressure, the average translational kinetic energy of its molecules will
If the volume of a gas is doubled at constant pressure, the average translational kinetic energy of its molecules will
PhysicsHeat
Physics
An ideal gas is heated at constant volume until its pressure doubles. Which one of the following statements is correct?
An ideal gas is heated at constant volume until its pressure doubles. Which one of the following statements is correct?
PhysicsHeat
Physics
Four molecules of a gas are having speeds of 1, 4, 8 and 16 ms-1. The root mean square velocity of the gas molecules is
Four molecules of a gas are having speeds of 1, 4, 8 and 16 ms-1. The root mean square velocity of the gas molecules is
PhysicsHeat
Physics
‘N’ Molecules each of mass ‘m’ of gas ‘A’ and ‘2N’ molecules each of mass ‘2m’ of gas ‘B’ are contained in the same vessel, which are maintained at a temperature T. The mean square velocity of molecules of B type is denoted by ‘v2’ and the mean square of the ‘X’ component of the velocity of A type is denoted by 
‘N’ Molecules each of mass ‘m’ of gas ‘A’ and ‘2N’ molecules each of mass ‘2m’ of gas ‘B’ are contained in the same vessel, which are maintained at a temperature T. The mean square velocity of molecules of B type is denoted by ‘v2’ and the mean square of the ‘X’ component of the velocity of A type is denoted by
PhysicsHeat
Physics
An ideal gas undergoes a process in which PV –a = constant, where V is the volume
occupied by the gas initially at pressure P. At the end of the process, ‘r.m.s’ speed of gas molecules has become a1/2 times of its initial value. What will be the value of CV so that energy transferred in the form of heat to the gas is 'a' times of the initial energy.
An ideal gas undergoes a process in which PV –a = constant, where V is the volume
occupied by the gas initially at pressure P. At the end of the process, ‘r.m.s’ speed of gas molecules has become a1/2 times of its initial value. What will be the value of CV so that energy transferred in the form of heat to the gas is 'a' times of the initial energy.
PhysicsHeat
Physics
Find the number of degrees of freedom of molecules in a gas whose molar heat capacity at constant pressure is equal to Cp=29 J/ (mol.K)
Find the number of degrees of freedom of molecules in a gas whose molar heat capacity at constant pressure is equal to Cp=29 J/ (mol.K)
PhysicsHeat
