AIPMT 2011 Prelims | Heat and Thermodynamics Question 66 | Physics

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

During an isothermal expansion, a confined ideal gas does $$-$$ 150 J of work against its surroundings. This implies that

150 J of heat has been removed from the gas

300 J of heat has been added to the gas

no heat is transferred because the process is isothermal

150 J of heat has been added to the gas

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

A monatomic gas at pressure P₁ and volume V₁ is compressed adiabatically to $${{1 \over 8}^{th}}$$ of its original volume. What is the final pressure of the gas?

64P₁

P₁

16P₁

32P₁

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

If c_p and c_v denote the specific heats (per unit mass of an ideal gas of molecular weight M, then

c_p $$-$$ c_v = R/M²

c_p $$-$$ c_v = R

c_p $$-$$ c_v = R/M

c_p $$-$$ c_v = MR

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

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