The specific heat at constant pressure of a real gas obeying equation is: [2024]
(4)
We need to find
we have constant
differentiating,
Also,
For one mole of gas,
A mixture of one mole of monoatomic gas and one mole of a diatomic gas (rigid) are kept at room temperature (27°C). The ratio of specific heat of gases at constant volume respectively is [2024]
(3)
If three moles of monoatomic gas is mixed with two moles of a diatomic gas , the value of adiabatic exponent for the mixture is [2024]
1.75
1.40
1.52
1.35
(3)
Monoatomic gas mole
Diatomic gas mole
....(1)
A gas mixture consists of 8 moles of argon and 6 moles of oxygen at temperature T. Neglecting all vibrational modes, the total internal energy of the system is [2024]
29RT
20RT
27RT
21RT
(3)
Two moles a monoatomic gas is mixed with six moles of a diatomic gas. The molar specific heat of the mixture at constant volume is [2024]
(1)
For a diatomic gas, if for rigid molecules and for another diatomic molecules, but also having vibrational modes. Then, which one of the following options is correct?
( and are specific heats of the gas at constant pressure and volume) [2025]
(4)
without vibration : f = 5 : = 1.4
without vibration : f = 7 : = 1.14
In an adiabatic process, which of the following statements is true? [2025]
The molar heat capacity is infinite
Work done by the gas equals the increase in internal energy
The molar heat capacity is zero
The internal energy of the gas decreases as the temperature increases
(3)
For adiabatic process, dQ = 0
Molar heat capacity = 0
dQ = 0 dU = –dW
Also,
Only option (3) is correct.
Match the List-I with List-II
List-I | List-II | ||
(A) | Triatomic rigid gas | (I) | |
(B) | Diatomic non-rigid gas | (II) | |
(C) | Monoatomic gas | (III) | |
(D) | Diatomic rigid gas | (IV) |
Choose the correct answer from the options given below: [2025]
A-III, B-IV, C-I, D-II
A-III, B-II, C-IV, D-I
A-II, B-IV, C-I, D-III
A-IV, B-II, C-III, D-I
(1)
, f is degree of freedom
Triatomic rigid gas (Triatomic)
Diatomic non-rigid gas (Datomic, non-rigid)
Diatomic rigid gas (Diatomic, rigid)
Monoatomic rigid gas (Monoatomic, rigid)
The temperature of 1 mole of an ideal monoatomic gas is increased by 50°C at constant pressure. The total heat added and change in internal energy are and , respectively. If then the value of x is ________. [2025]
15
= 50°C = 50 K
n = 1 mole of ideal gas
For monoatomic gas
is the specific heat ratio of monoatomic gas A having 3 translational degrees of freedom. is the specific heat ratio of polyatomic gas B having 3 translational, 3 rotational degrees of freedom and 1 vibrational mode. If , then the value of n is ________. [2025]
3