24-221
Thermodynamics
Solution to: Quiz 1
Date: Sep 15 2000
Prof. J. Murthy
Given: Piston cylinder assembly
Gas Pressure Pg = 200 kPa
Area of cross section A: 0.01m2
Mass of the piston mp = 50 kg
External Pressure P0
To Find: P0 such that it just keeps th

ME 24-221
Thermodynamics I
Solution Quiz No: 4
Date: 3 November 2000
Instructor; J. Murthy
Given:- Air; Ideal gas; constant specific heats
Ti= 20 C = 293 K
Pi = 103 kPa
P2 = 500 kPa
me = 0.115 kg
1Q2 = -8.8 kJ
m1 =0
Find: T2 in K, Volume of tank in m3
Sol

ME 24-221
THERMODYNAMICS I
Solution to Quiz # 6
17 November 2000
J. Murthy
Given: Closed system with water; State 1: Saturated Liquid at 100 kPa
State 2: Saturated Vapor at 100 kPa
Heat transfer from a reservoir at 120 oC (393.15 K).
1S2, gen is zero for

ME 24-221
THERMODYNAMICS I
Solutions to Quiz 8
December 8, 2000
J. Murthy
Given:
Air Standard Brayton Cycle
Cycle: 1-2-3-4
Constant Specific heats
State 1: T1 = 300 K; P1 = 100 kPa
State 3: T3 = 1500 K; P3 = 1000 kPa
To Find: Temperature at the end of ise

ME 24-221
THERMODYNAMICS I
Solutions to Quiz 7
December 1, 2000
J. Murthy
Given:
Air; Compressor
State 1: P1 = 500 kPa; T1 = 300 K
State 2: P2 = 5.873 Mpa; T2,ac = 660 K
Variable specific heats
To Find: Isentropic efficiency s
Solution: Solution using var