SATHEE: Heat and Thermodynamics 5 Question 27

Heat and Thermodynamics 5 Question 27

28. An ideal monoatomic gas is taken round the cycle $A B C D A$ as shown in the $p - V$ diagram (see figure). The work done during the cycle is

(1983, 1M)

(a) $p V$

(b) $2 p V$

(d) zero

Match the Columns

Directions (Q.Nos. 15-18) Matching the information given in the three columns of the following table.

An ideal gas is undergoing a cyclic thermodynamic process in different ways as shown in the corresponding $p - V$ diagrams in column 3 of the table. Consider only the path from state 1 to state 2 . $W$ denotes the corresponding work done on the system. The equations and plots in the table have standards notations and used in thermodynamic processes. Here $γ$ is the ratio of heat capacities at constant pressure and constant volume. The number of moles in the gas is $n$ .

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Solution:

Work done in a cyclic process $=$ area between the cycle

$= A B \times B C = (2 p - p) \times (2 V - V) = p V$

NOTE If cycle is clockwise ( $p$ on $Y$ -axis and $V$ on $X$ -axis) work done is positive and if it is anti-clockwise work done is negative.

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Heat and Thermodynamics 5 Question 27

28. An ideal monoatomic gas is taken round the cycle $A B C D A$ as shown in the $p - V$ diagram (see figure). The work done during the cycle is

Match the Columns

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Heat and Thermodynamics 5 Question 27

28. An ideal monoatomic gas is taken round the cycle ABCDA as shown in the p−V diagram (see figure). The work done during the cycle is

Match the Columns

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

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28. An ideal monoatomic gas is taken round the cycle $A B C D A$ as shown in the $p - V$ diagram (see figure). The work done during the cycle is