Engineering Thermodynamics A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is 108°C 327°C 54°C 654°C 108°C 327°C 54°C 654°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Avogadro's Hypothesis The sum of partial pressure of mixture of two gases is sum of the two The molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature Product of the gas constant and the molecular weight of an ideal gas is constant Gases have two values of specific heat The sum of partial pressure of mixture of two gases is sum of the two The molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature Product of the gas constant and the molecular weight of an ideal gas is constant Gases have two values of specific heat ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A path 1-2-3 is given. A system absorbs 100 kJ as heat and does 60 kJ of work while along the path 1-4-3, it does 20 kJ of work. The heat absorbed during the cycle 1-4-3 is -80 kJ +60 kJ -40 kJ -140 kJ -80 kJ +60 kJ -40 kJ -140 kJ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The air standard efficiency of an Otto cycle is given by (where r = Compression ratio, and γ = Ratio of specific heats) 1 - (1/ rγ - 1) 1 - rγ - 1 1 + (1/ rγ - 1) 1 + rγ - 1 1 - (1/ rγ - 1) 1 - rγ - 1 1 + (1/ rγ - 1) 1 + rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] log (v1/ v2)/ log (p1/p2) log (p2/ p1)/log (v1/ v2) log (p1p2)/log (v1v2) log [(p1v1)/(p2v2)] log (v1/ v2)/ log (p1/p2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to 800 K 1400 K 1200 K 1000 K 800 K 1400 K 1200 K 1000 K ANSWER DOWNLOAD EXAMIANS APP
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