Each line of the following table gives data, in Btu, for a process of a closed system. Determine the missing table entries, in Btu. Process Q a b C d e 40 -4 -10 3 W 5 10 10 E₁ i 15 7 -10 8 E₂ i i 22 -8 ΔΕ i 15 30 4

1. Compared to gasoline, hydrogen has (A) higher energy density per unit volume and per unit mass (B) higher energy density per unit volume but lower energy density per unit mass density per unit mass (C) lower energy density per unit volume but higher energy (D) lower energy density per unit volume and per unit mass 2. A new hydroelectric power plant proposed for the Mississippi River near St. Louis is advertised as "delivering 438,000 megawatt-hours of renewable electricity to the region annually". What is the average power output of the plant? (A) 50 MW (B) 1.2 GW (C) 438 GW (D) 438 MW 3. A car accelerates from 0 to 60 miles/hour in 6 seconds. What is a good estimate of the power output of the engine? (A) the mass of the car divided by 60 miles (B) the chemical energy of the gasoline consumed during the acceleration (C) the thermal energy produced by the engine during the acceleration (D) the final kinetic energy of the car divided by 6 seconds

6 thermodynamics

Differentiate zeroth, first, and second law of thermodynamics