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Thermodynamics previous years 2 marks solved question.
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In this video we will solve GATE MECHANICAL Thermodynamics previous years 2 marks questions and correct approach to solve problems.

RUTUJA Bothara
Strengthen GATE /PSU/ESE/SSC JE/RRB JE /campus Placements preparation. A passionate mechanical engineer -VIT University

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ma'am 8 Question ka ans C. kyu nh h??
1. GATE Previous years Thermodynamics questions Important Two-marks GATE questions By Rutuja Bothara

2. RUTUJA BOTHARA . Perusing B.Tech in Mechanical Engineering from Vellore Institute of Technology, Vellore. (2015-2019) Cleared JEE Mains 2015 Cleared VITEEE-2015 with AIR 8718 . Cracked HITSEEE-2015 with AIR 91 . Worked as a Career Counsellor in Teachers Academy (2016- 2018) and BOLO app. https://unacademy.com/user/rurutujajb96-9511

3. An irreversible heat engine extracts heat from a high temperature source at a rate of 100kW and rejects heat to a sink at a rate of 50kW. The entire work output of the heat engine is used to drive a reversible heat pump operating between a set of independent isothermal heat reservoirs at 17 C and 75 C. The rate (in kW) at which the heat pump delivers heat to its high temperature sink is #50 250 #300 #60

4. T3 WorK fro ro) heat engine HE) > H P T 2 For heat purnf

5. -A gas expands in a frictionless piston -cylinder arrangement. The expansion process is very slow and is resisted by an ambient pressure of 100 kPa. During the expansion process, the pressure of the system (gas) remains constant at 300 kPa. The change in volume of the gas is 0.01 m3. The maximum amount of work that could be utilized from the above process is 0 k) 2 kJ 3 k # j

6. pue.ing the hole procees inside Prets ure of ga remains Constart Po ih cha Wor k donePdv

7. A cyclic device operates between three thermal reservoirs, as shown in the figure. Heat is transferred to/form the cyclic device. It is assumed that heat transfer between each thermal reservoir and the cyclic device takes place across negligible temperature difference. Interactions between the cyclic device and the respective thermal reservoirs that are shown in the figure are all in the form of heat transfer. The cyclic device can be A reversible heat engine A reversible heat pump or a reversible refrigerator An irreversible heat engine An irreversible heat pump or an irreversible refrigerator

8. Tha device is rejecting heat Arom highet tempeeatare to a oempe ratare ors) He h ce ,+ is dh engine According to clauasias state ment 1000 K 500 K300 K 50 kJ device looo Soo 300 Tt is reversible heat engine

9. A balloon containing an ideal gas is initially kept in an evacuated and insulated room. The balloon ruptures and the gas fills up the entire room. Which one of the following statements is TRUE at the end of above process? The internal energy of the gas decreases from its initial value, but the enthalpy remains constant -The internal energy of the gas increases from its initial value, but the enthalpy remains constant Both internal energy and enthalpy of the gas remain constant Both internal energy and enthalpy of the gas increase

10. EnthalP balloon S eh >y , Insulated ad eva cuate d roo m No hearans fe& AlEo 3 is not doing ayoork again st extet na Peure

11. tans-fe C82 From claasios eqaality T 2. 100-3 i oo 4 oo a SO