Engineering Thermodynamics A gas is compressed in a cylinder by a movable piston to a volume one half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be 300,000 Nm 300 Nm 30 Nm 3000 Nm 300,000 Nm 300 Nm 30 Nm 3000 Nm ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics Second law of thermodynamics defines Heat Entropy Internal energy Work Heat Entropy Internal energy Work ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The polytropic index (n) is given by 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) log (p2/ p1)/log (v1/ v2) ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The gas constant (R) is equal to the Product of two specific heats Sum of two specific heats Ratio of two specific heats Difference of two specific heats Product of two specific heats Sum of two specific heats Ratio of two specific heats Difference of two specific heats 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 - (1/ rγ - 1) 1 - rγ - 1 1 + rγ - 1 1 + (1/ rγ - 1) 1 - (1/ rγ - 1) 1 - rγ - 1 1 + rγ - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as Absolute temperature, if volume is kept constant Temperature Volume, if temperature is kept constant None of these Absolute temperature, if volume is kept constant Temperature Volume, if temperature is kept constant None of these ANSWER DOWNLOAD EXAMIANS APP
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