AIPMT 2010 Prelims | Heat and Thermodynamics Question 58 | Physics

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

If $$\Delta $$U and $$\Delta $$W represent the increase in internal energy and work done by the system respectively in a thermodynamical process, which of the following is true ?

$$\Delta $$U = $$-$$$$\Delta $$W, in an adiabtic process

$$\Delta $$U = $$\Delta $$W, in an isothermal process

$$\Delta $$U = $$\Delta $$W, in an adiabatic process

$$\Delta $$U = $$-$$ $$\Delta $$W, in an isothermal process

AIPMT 2009

MCQ (Single Correct Answer)

-1

The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is

6400 J

5400 J

7900 J

8900 J

AIPMT 2009

MCQ (Single Correct Answer)

-1

In thermodynamic processes which of the following statements is not true ?

In an isochoric process pressure remains constant.

In an isothermal process the temperature remains constant.

In an adiabatic process PV^{$$\gamma $$} = constant.

In an adiabatic process the system is insulated from the surroundings.

AIPMT 2008

MCQ (Single Correct Answer)

-1

At 10^oC the value of the density of a fixed mass of an ideal gas divided by it pressure is x. At 110^oC this ratio is

$${{10} \over {110}}x$$

$${{283} \over {383}}x$$

$$x$$

$${{383} \over {283}}x$$

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