Thermodynamics — practice questions
21 curated practice questions from Thermodynamics (Physics Class 11, CBSE) — 21 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- An ideal gas is compressed isothermally until its pressure is doubled and then allowed to expand adiabatically to…
- 1/2 mole of helium is contained in a container at STP. How much heat energy is needed to double the pressure of the…
- One mole of an ideal monoatomic gas at temperature T 0 expands slowly according to the law = constant. If the final…
- What is the entropy change when 1 mole oxygen gas expands isothermally and reversibly from an initial volume of 10 L to…
- What will be the change in internal energy when 12 kJ of work is done on the system and 2 kJ of heat is given by the…
- The pressure and density of a diatomic gas ( = 7 5 ) changes adiabatically from ( P , d ) to ( P ′, d ′). If d^ d =32…
- At absolute zero, the entropy of a pure crystal is zero. This is
- The temperature of 2 mole of an ideal monoatomic gas is raised to 15 K at constant volume. The work done by the gas is
- Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10…
- Consider the given diagram for 1 mole of a gas X and answer the following question. The process A → B represents
- Which of the following expressions regarding entropy is not correct?
- A system absorbs 50 kJ heat and does 20 kJ of work. What is the net change in the internal energy of the system?
- Work done on an ideal gas in a cylinder when it is compressed by an external pressure in a single step is shown below…
- For an isothermal reversible expansion process, the value of q can be calculated by the expression
- Which of the following reactions will have the value of D S with a negative sign?
- If C P and C V denoted the specific heats of unit mass of nitrogen at constant pressure and volume respectively, then
- D E = q + W is mathematical expression for
- When the system does not exchange heat with the surroundings, the process is
- An ideal gas at a pressure of 1 atmosphere and temperature of 27°C is compressed adiabatically until its pressure…
- A system changes from state X to Y with a change in internal energy measuring to 25 kJ mol –1 , by a reversible path…
- 200 Joules of heat was supplied to a system at constant volume. It resulted in the increase in temperature of the…