Engineering Thermodynamics According to Regnault's law, the specific heat at constant pressure (cp) and specific heat at constant volume (cv) _________ with the change in pressure and temperature of the gas. Both (A) and (B) None of these Change Do not change Both (A) and (B) None of these Change Do not change ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to 1 γ ∝ 1 γ ∝ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is 84 kJ 54 kJ 30 kJ 114 kJ 84 kJ 54 kJ 30 kJ 114 kJ ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about 1 × 10⁵ joules 100 × 10⁵ joules 10 × 10⁵ kilo joules 10 × 10⁵ joules 1 × 10⁵ joules 100 × 10⁵ joules 10 × 10⁵ kilo joules 10 × 10⁵ joules ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics The condition for the reversibility of a cycle is The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process All of these The working parts of the engine must be friction free All the processes, taking place in the cycle of operation, must be extremely slow ANSWER DOWNLOAD EXAMIANS APP
Engineering Thermodynamics In S. I. units, the value of the universal gas constant is 8.314 J/kg mole-K 8314 J/kg mole-K 831.4 J/kg mole-K 83.14 J/kg mole-K 8.314 J/kg mole-K 8314 J/kg mole-K 831.4 J/kg mole-K 83.14 J/kg mole-K ANSWER DOWNLOAD EXAMIANS APP
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