AIEEE 2005 | Heat and Thermodynamics Question 402 | Physics

The temperature-entropy diagram of a reversible engine cycle is given in the figure. Its efficiency is AIEEE 2005 Physics - Heat and Thermodynamics Question 379 English

AIEEE 2005 Physics - Heat and Thermodynamics Question 379 English

$${1 \over 4}$$

$${1 \over 2}$$

$${2 \over 3}$$

$${1 \over 3}$$

AIEEE 2005

MCQ (Single Correct Answer)

-1

A gaseous mixture consists of $$16$$ $$g$$ of helium and $$16$$ $$g$$ of oxygen. The ratio $${{Cp} \over {{C_v}}}$$ of the mixture is

$$1.62$$

$$1.59$$

$$1.54$$

$$1.4$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

If the temperature of the sun were to increase from $$T$$ to $$2T$$ and its radius from $$R$$ to $$2R$$, then the ratio of the radiant energy received on earth to what it was previously will be

$$32$$

$$16$$

$$4$$

$$64$$

AIEEE 2004

MCQ (Single Correct Answer)

-1

One mole of ideal monatomic gas $$\left( {\gamma = 5/3} \right)$$ is mixed with one mole of diatomic gas $$\left( {\gamma = 7/5} \right)$$. What is $$\gamma $$ for the mixture? $$\gamma $$ Denotes the ratio of specific heat at constant pressure, to that at constant volume

$$35/23$$

$$23/15$$

$$3/2$$

$$4/3$$

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