AIEEE 2009 | Heat and Thermodynamics Question 361 | Physics

Two moles of helium gas are taken over the cycle $$ABCD,$$ as shown in the $$P$$-$$T$$ diagram. AIEEE 2009 Physics - Heat and Thermodynamics Question 348 English

Assuming the gas to be ideal the work done on the gas in taking it from $$A$$ to $$B$$ is :

$$300$$ $$R$$

$$400$$ $$R$$

$$500$$ $$R$$

$$200$$ $$R$$

AIEEE 2009

MCQ (Single Correct Answer)

-1

Two moles of helium gas are taken over the cycle $$ABCD,$$ as shown in the $$P$$-$$T$$ diagram. AIEEE 2009 Physics - Heat and Thermodynamics Question 347 English

The work done on the gas in taking it from $$D$$ to $$A$$ is :

$$+414$$ $$R$$

$$-690$$ $$R$$

$$+690$$ $$R$$

$$-414$$ $$R$$

AIEEE 2009

MCQ (Single Correct Answer)

-1

Two moles of helium gas are taken over the cycle $$ABCD$$, as shown in the $$P$$-$$T$$ diagram. AIEEE 2009 Physics - Heat and Thermodynamics Question 346 English

The net work done on the gas in the cycle $$ABCDA$$ is:

$$276$$ $$R$$

$$1076$$ $$R$$

$$1904$$ $$R$$

zero

AIEEE 2008

MCQ (Single Correct Answer)

-1

The speed of sound in oxygen $$\left( {{O_2}} \right)$$ at a certain temperature is $$460\,\,m{s^{ - 1}}.$$ The speed of sound in helium $$(He)$$ at the same temperature will be (assume both gases to be ideal)

$$1421\,\,m{s^{ - 1}}$$

$$500\,\,m{s^{ - 1}}$$

$$650\,\,m{s^{ - 1}}$$

$$300\,\,m{s^{ - 1}}$$

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