AIPMT 2011 Prelims | Heat and Thermodynamics Question 55 | Physics

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

When 1 kg of ice at 0^oC melts to water at 0^oC, the resulting change in its entropy, taking latent heat of ice to be 80 cal/^oC, is

273 cal/K

8 $$ \times $$ 10⁴ cal/K

80 cal/K

293 cal/K

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 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 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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