working at a gas station

Every month, Mary works 34 hours in a pizza corner, 48 hours in a gas station, and 68 hours as a tutor. About how many hours does Mary spend working every month? => 100 hours or 130 hours or 180 hours or 150 hours..

Slurry (mixture of equal quantities of biomass and water) is prepared in the mixing tank. The prepared slurry is fed into the inlet chamber of the digester through the inlet pipe. The plant is left unused for about two months and introduction of more slurry is stopped. During this period..

When pure and dry H 2 gas is passed through the inlet tube, a part of the gas gets adsorbed and the excess bubbles out through the perforations. Between the H 2 gas absorbed on the surface of the metal and H + of the solution, an equilibrium is established and an e..

The various forms of biomass are mixed with an equal quantity of water in the mixing tank. This forms the slurry. The slurry is fed into the digester through the inlet chamber. When the digester is partially filled with the slurry, the introduction of slurry is stopped and the plant is left..

. So, the heat supplied is assumed to increase only the temperature. However, the coefficient of expansion is very large in case of gases. Thus, if a gas is heated the heat energy is required, not only to increase the temperature of the gas but also to do mechanical work..

) holds good at all pressures and temperatures. This is an idealized model. It works best at very low pressures and high temperatures, when the gas molecules are far apart and in rapid motion. It is reasonably good (within a few per cent) at moderate pressures (such as a few atm..

V) is, by chance, very close to level E 2 in neon (= 20.66 eV). So, during collisions between helium and neon atoms, the excitation energy of the helium can be readily transferred to the neon. In this way level E 2 can become more highly populated than level E 1 . This population inversion is maint..

Work is another mode of transference of energy. Work is said to be done if the point of application of force undergoes displacement in the direction of the force. If the system loses energy, we say that the work is done by the system. Alternatively, if the system gain..

The cost of a gallon of gasoline is $6.60. Arthur fills 10 gallons of gasoline in his car. How much should he pay at the gas station? => $67.52 or $68 or $66.95 or $66..