The specific heat capacity of a gas in an isothermal process is .............. - Infinite
The specific heat capacity of a gas in during adeabatic process is - Zero
If we supply equal amounts of heat to equal masses of two different substances, the rise in temperature will be the same for both. - False
Why is water used in automobiles as a coolant? - It has a high specific heat capacity.
Specific heat capacity depends on the mass of the substance. - False
Heat capacity depends on the mass of the substance. - True
The specific heat of a gas at constant pressure is greater than that of the same gas at constant volume because - At constant pressure work is done in expanding the gas against constant external pressure.
Three copper blocks of masses M 1 , M 2 and M 3 kg respectively are brought into thermal contact till they reach equilibrium. Before contact, they were at T 1 , T 2 , T 3 ( T 1 > T 2 > T 3 ) . Assuming there is no heat loss to the surroundings, the equilibrium temperature T is ( s is specific heat of copper). - (M 1 T 1 + M 2 T 2 + M 3 T 3)/ (M 1 + M 2 + M 3)
More is the specific heat capacity of a substance, ......... is the temperature for a given amount of heat energy - less
If a cup of tea at 50 °C is allowed to cool to room temperature, heat released would be (assume room temperature to be equal to 25 °C and heat capacity of the cup and tea to be = 5.0 kJ ⁄ K) - 125 kJ
The internal energy of ideal gas depends upon - Teperature
In which of following process internal energy rises - Adiabatic compression
Adiabatic process occur at constant ......... - Heat
For the adiabatic process to take place, the system should be ______. - Perfectly insulating
In the adiabatic process, transformation is ______. - Fast
Addition of heat at constant pressure results in - Raising its temperature and doing external work.
Which of the following items is not a path function? - Thermal conductivity
The absolute zero pressure can be attained at a temperature of - -273°C
Through the process of evaporation and melting, the state or phase of different liquids changes. This is an example of the ...................................... - Isothermal process
Which law of thermodynamics states that heat naturally flows from a higher temperature to a lower temperature? - Zeroth law of thermodynamics
What is the concept of entropy in thermodynamics? - measure of a system's disorder or randomness.
What does the zeroth law of thermodynamics state? - Objects in thermal equilibrium have equal temperatures.
The internal energy of an ideal gas is - a function of temperature alone.
Work done by a system is taken to be - Negative
Work is a ...... - path function
Thermodynamic properties are ............. - depends on the state
Which of the following represents the energy in storage? - Internal energy
Which statement is true about the First Law of Thermodynamics? - All of these
In an isothermal process, the internal energy of gas molecules________________? - remains constant
Specific heats of a gas at constant pressure and at constant volume are respectively Cp and Cv. - Cp > Cv
If the temperature is constant, the internal energy: - does not change with change in pressure or volume
