Which of the following hydrocarbons of same carbon atoms has minimum smoking tendency?

The temperature in isentropic flow________?

________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction?

The most commonly used moderator in nuclear power plants is________?

The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is________?

The lowest temperature, at which a solid fuel produces enough vapors to support continuous combustion, is called?