91. 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.
92. The natural petroleum may be separated into
93. One kg of carbon requires $$\frac{4}{3}$$ kg of oxygen and produces ________ kg of carbon monoxide gas.
94. One kg of carbon requires $$\frac{4}{3}$$ kg of oxygen and produces __________ kg of carbon monoxide gas.
95. For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be
96. Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
97. Which of the following processes are thermodynamically reversible?
98. Entropy change depends on
99. Coke is produced
100. When a gas is heated at constant pressure
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